1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82785b52a3809ff3749857fb6d6b96e9c8ca0119e63ac28bd93f8538ac498d02. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b145570-38e8-4115-9833-640ee08195a5.json and https://artists.proofprofile.net/proofs/artist/7b145570-38e8-4115-9833-640ee08195a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb7adc5e89b178799be4ece9e11f91ef29d6f6d658112f72802db04b76db449. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2ee0c53d3ef4d8aebbff1e826fcaf3e09d7de157d0f0233c964b8e2b80d5d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78bd49509b86de783c3271a1485769bd76b99cc4cb1197f094eac8e42947d630. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433c57a387417fca24ee811179acc47bd8b813c13f296a18889782314a1c5dbf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea9377965362e22e856c7a86dee1e47f9ea41643b108fd844be5d0d3222e05f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210005.
Bajka o tym, że czas nas zmienił (prod. D. Gutjar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b64b90e14da9eb474c09ebadb781acd417b1a3fd91c9ba7cbb0cc4368fa64c4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6eb8af087f87eb27468998d87813b8699e3a11913c08fee93efc91cfffc4b1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bea64c9c3ea924c15e62a6e97ef5b7e5b4f52accb08a6daf57f0438b2f5a121. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f436c08f3601d496e54454558f219e8006ce135e2a2d8756895f32a4e88ad3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cc11615d7a8ef028117215a444f8b8821f07342172fa62c00f95adfd71d579. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b694ffa17c7a152c3a758459831508088d4e1c8a4966570241501d2af0b36ad. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5629da30a1faa471cb9643ef0ac5a00dbaa99572234a158c9b9265c81dae8f30. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79541a482eca87e289dd1fcc318979db0929473835b6437d5123d31385c22929. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04911f6da4ee15d7cbb4eb974aa1e905990a65cd3ffe87424ed50930536b10b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501210016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06fd704b5fee62ff0cd7ce8307e2913a59f1447ec42c3636a52da98a21ee045. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLD501420054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5dbe08b1a32bfb5357a52a9b5c503e1a48cb74ba48c7715d030a1c0e7c4398. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL371400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3247fbfc587a156c130b57399b9a5350b4b66f08538b1978d20c59dee36f04c1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL371400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25597b593d7952cffebcd542f8a286b9b24d53c2dbfbe0bf3d0095eff9ecda9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB570600215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899c68ac9a2b8928fd763e379eca73d2a34dd7c1a040c6190c396d20db2f793f. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:09:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB570400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7657bb620d7af61d41862173748734da60f236875f3d59fd1dacb229ac52216d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB570400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f788fed9cb2f7d534110edd45098ffcd07e34a30894c222fc83c99ed2611019. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB570400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c17540ba9d50cc6319f90220f687ff1259514e121e4fc5374ebc4f5a19e097. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:11:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b0c409881caf7afa49c370b1673ffb55c547a721bc220ec8331fc813f81978. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67d161d0fddfb2ba93cff21376669abc19e2f2f2a3db56976ab1ab777480cfb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a7c132f6b905cf7ffb07a81aa80b6f0d052ba0dbab25bf20b8a3617332618a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd4d0ce71ba6a00d4be62cc33a511b539c997b281160b322a75314cb653fc76. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:32:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a5c9993bddb2b8d355094523998124c4042bf95e75a6a3bbab6bb1e2e192ae. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0af6a6f03adf961b8c78a306ab3e5abd4eebf4844fd4f1262f9520cb3c4666. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2cac41ca0f2785f46206b681b879230d7853e6178e2b4a74d8418b8c18b053. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8443b6dfd3e43fdaedf396d7e1b9b75161ef196ad075886bd75c912be5973b1a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b49fa35c1b57baee7c4a92b7d4c1eb5b68ba666987d85e59d1885e6a1e68235. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b195ea99febb08ca1b49130ad4bb021b1511f08b458d4faf8e570c24792d703. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cbe988c85de92dc48836cc12bf4b14b2acd177ab0caa4bb2aa4038ce25f922. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabee089aa1fece1833405b519db89431af61394a593820447995e479511f1b7a. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea67e698f1d81308c4ecbe1f387b956fff6c1b5bc78cffa444a67c727f38184a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS431800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c84170eac8ef7fe9ee0e38f3075a8ce28894418354c56d33309e4940beeaae. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea39d0555406f2bac19e9e6412ab61ace6b3a210f2fc848f78ef42f353d86095. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:03:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dd8d21b509b95d6c42a0c7c99d00c8c34e670959f6e4fad677d06899f3746b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769668878be18c190f05a9e6f25ab684b8f6deae88772eebd662bc615c197f55. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf206051a07022353e94af2ea09d79ca0743918e6ef6c47c29e5ca972ed6ca7. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:11:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45feac055d76b638c435ead0b39ea9c83d4d3dc8543e1a474ebc080bef2a11d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5155e5a74e9e8cdc84680d482729930b49d44a74c2687dd3709fb8ff72f62af2. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8dbc753755d55dc1dc89d2b0a84a7468c0a6be103981ce872a0e4a4a073275. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07668f5b9cd0dbab5d4bc3a5818b67effef3645a72e670ac27f526ac51b6085. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610c414e38d60357f30f429dff8baf59886f0756bc7d56b5686ba3b6a60f96e3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL44A1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bccc02c70ed3dff545854a20cd5d77b46eed211530a7182c946dd9b4b52218. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH181200005.
Radio 5G FM (feat. Buszu, Dejan, Borixon, Sitek, Pan Duże Pe & Filip Rudanacja)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb962e5703dc60a4bae21d6b56838e52a7e1020661dc8da30d5b16560e7c8e301. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLF241300393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b60558f4d8774eb38f340206c81620e8c86528be45f331d36e61a0597cc215d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLF241401375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9356784127067bbd2ee4d342921c025c7c3ed035e6cf61ede3ce05f1c3bcb43f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC061807399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269dcab54bec970e5853fd65a434d24537b82d9f990df6e8900a4c2daee648be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLE951200950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c924c4f11ffc54f49cf58d30318892bedb791e0b6ae042ffde40e273070fc9d. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLC061807338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee807323a80f8b4c5ea378cb98c75ff37fecb2a82a12b6139d94d9bbe6b61dd5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLF241906338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99903375cbb6c4a2310bcc10d39a33dcd167dc0377d38178c6b659243f96e4ea. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLF241906142.
Lifestyle (feat. Malik Montana, Borixon & Białas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1d765e5fcf528682cccbf800a85ca7f8bff719bfe70f0a806b4d334180d086. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB381900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269dcab54bec970e5853fd65a434d24537b82d9f990df6e8900a4c2daee648be. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLE951200950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd598b077c3ef8d4f005a0a89122617ea3aceea9210896318e4d21f8d5398d0e4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2200259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7c41b140cd6e8f0c56aa765655b23cdf9f98e81b166d8c379d9e6eb1ea8eb0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2300344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2497a84677bbb26b14e54fbe886d98a340ef7e928d776b8182ad6de78dc61e4c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2300321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31a365c64120db3dff78e2346303aca33b92f263dc93a21fe7d4de43bc9e212. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL371400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1d765e5fcf528682cccbf800a85ca7f8bff719bfe70f0a806b4d334180d086. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB381900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd92420a1942a7d541a3b7fa5f17d3f83e990e0c83496eb85df4b651b49e6b4a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL59G2300350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cbd22a2eb87bc669a0a53afa78afb7e53d1aba8d766e2660db155a2fc2b5d2. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V1222654.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cb89df439115ba382d27a870a5cac577f194490ebb8d0283b1ff01deaaf26f. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLB570400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae4fd9dd2b0841716359f9e3aa338300b6109645830a1a771fe2d591761275d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLL371400399.