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 0xd9142d3f7267bcef5ef3c0b51be05180d2484c590242a797ced64d78f4668531. 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/58a5d7dc-7d4d-4157-a679-bf6bb89d7c16.json and https://artists.proofprofile.net/proofs/artist/58a5d7dc-7d4d-4157-a679-bf6bb89d7c16.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 0xae00423c5207b0c3c20aa3ea19a22ae6a665445e1448d9636b095fc241e25790. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/PKA062142048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabfb77c1da978ef3188af59842f029efc915c096a56898502a3201040a10c39. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZZ662406691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2203b644b765c4d9a923f907a8dcff406facdd708e64f68bcb74d2b9d20911f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZZ662406693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daf649a46c574397b8721423c33b19970578fdf09b9d7e22f30a46c0ac27852. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ662406684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11823975583fdf6582dfa3dc45a7386dcf22125b0a05194d77d054819be6d534. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZZ662406694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8da6f13de36e48dfd7af465a831699047f9389d9294cc572bab7448fdcc890. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:15:17Z), 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/QZZ662406677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641fd905421fc4c15cb9b374efb4d4f54a0f61228d64bdff7670dcc3f56532c2. 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/QZZ662406700.
Bhar Do Jholi Meri Ya Muhammad (S.A.W.W)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67364aad65c718fba166edbefa12ea834fbad56bda3465c3e24e2c9e9d507bcf. 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/QZZ662406695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f02d5efbf8a5186a167fa1ea24a7fe6d865adc4b0ee054925ea9637decf52f. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QZZ662406679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b048cac6047728eee834e9074df2f7c3e810bc02af8d05bb1cfe390c719fd53. 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/QZZ662406697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308c2f0abf4d1b10d2e8b7e85d02c6b05e6ca5a55cfe2ae1f4a615b7b1f864cf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ662406696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d570d6472c8cc74a2f6414cfad8dfdae19e3b40afa2711c1fbdc0662c18a157. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:46:57Z), 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/QZZ662406699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9534ae73c0186e4ba9dc2b3fdc91b2bd8c8f7bfd548ed828cc0fc99babb56a7b. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZZ662406687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5beca8c25c6742c3ea9c3c7a89f7b76f7e1c53678b8bc40ae99221d30558ebc. 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/QZZ662440947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65562426c109425318fe968dc112297cd7a8f387af462bcc1eeb50d713462b6. 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/QZZ662451544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2df5b7d20b22ec1f66f94d86377cf5f20a31886e0d4c0c7116ab3ba64313e1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZZ662466396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356f2dbddce921ed0fcd457be9a4c9c0ce977bbb9529dcacccd55619061f3ae8. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/QZYFZ2480500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dffa029c92e0784c5d0fbc068bf3ea86395d163cefbdadbbdf73c04d1b3a53. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWDW2435267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892e299f14ea945fdd2a2b755e65191236fda16681f20accec9fc398d0f66b7a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZWDW2457161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509043e040748a6198548eae36f011fc405a93f140d2f61573715aaf40adf090. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZN882501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87093994d030d964efc925e076ea7d026f7461f75c4a522729c100371e121846. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/QZN882501058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc6566e3d86d9c74bc421eab19d7aaa40e031387afa832261bd7f9a90d7ac0d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZN882501755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beaf627d431ec1c3e07223b7e6ff389bf60b9ea3011e70ef11de47b467045f3. 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/US38Y2501677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92494b8dbf5133f654fa66939b3b7db4d729104dd22a014b711154226eb56ecb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:39:53Z), 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/US38Y2506455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c76e6eabce279794aadbcceae1d5c40ea8469b67758784455bbb282ec4946a. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZYFZ2504326.