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 0xbe3a7d5f6eda0110b9d270d62efe1d91ef27dfe29ea2e676a5ac72502d7e95cf. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/139cfac6-e5c5-4c55-80d2-72d7c38e13c0.json and https://artists.proofprofile.net/proofs/artist/139cfac6-e5c5-4c55-80d2-72d7c38e13c0.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 0xe39decc534655d482ebadd2897dab82922424cd2f6af728406e9b6f8355b8f3f. 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/QZES52135512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b6c66f3eb68521e8993c8a4afbcd7eddf037fe7a338262c200245aabd311fcc. 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/QM6P42317663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab96088c4267a81ef60dec49e6e5041670bb915038d5cfe934b857736cd30d9. 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/ES71G2339387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702ba1e920fa61ea0375ebdd76af9f64723cc7833e59f4794e0f904d715a440f. 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/ES71G2017211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb726eafb6599e7063a8309d790fcce09770802f0d4ecbb70996cbfb1ed976f. 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/ES71G2416855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff68bddd75da637e569562c5602a9261c20a0c67d3a92532dd886be9deb7e12a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES71G2313599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4644aaba6f15d2f358efb0e86b029733c2dcfd52ed4d9756684e62146f630223. 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/ES71G2313597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987adbf789d866a88c2f6ff224ad4cb47dcae9a68ce0caf32ab22b3550cefc45. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES71G2313600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf98aec7f2d71e8107137aa59492767c33811f72990358199a55a9a52adb367. 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/ES71G2313598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3a6591d8aabb5629c910f0681056ede01c7165950ac671cb8e081effec686b. 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/ES71G2313596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac5034947a7edfbae32c79043f43735a5ed601a35dd8066ea635cb585f4bbd0. 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/ES71G2313601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925b07f2bc214b80df9d41f0c4500373531819475f02fe4282a1569907d4f5d4. 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/ES71G1920909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afc986bcaf8db7aefa05b245dda2b09e516ed34383be5d5e883e87184b8a3f4. 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/ES71G1823987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abd8a2e97ca1dba30d060d93433f4056445071263ef54e59a5d4099b11b8a10. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES71G2134403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd56791d69a94e1ee966ceecafcf9c264488dc1567c8dd377fd5b76dff44729. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES71G2207178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5289f94071cb0fd2880578b7791d7413a04b646204e639fcfbafdb91ce370d2f. 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/ES71G2207171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624b20170b07864ee0126ed47b037c51653f4fe4b7ecd31125488f9833c5e951. 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/ES71G2008270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab81dd8cf9cf5c3364113787f0849554282abf30e727527624082202626629ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USDHM1424226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d9c4ea5bca4ec2918eb6e8b9ba400c067a3fe70e7cd99129431562b9fa29bf. 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/ES71G2508646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9fe78c07277fd676676f94ac8bd70e02229460257eac6f313019a960b706eb. 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/ES71G2425175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc66cded0c822e08e6530e3df1ef3aeb2f1c92a6d581d680542340d2600f2fe7. 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/ES71G2415553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1464319ca6672076747716ea4cdb5d8ddbc87b1f127d761223172384c2f4bbf0. 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/ES71G2326915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61199963c07cabffba49f6461135189546eef489b0ae7ea5d1329036e2f963d8. 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/ES71G2318641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd296b58c76706cbea5b2eaf1eb431869609476fb3849827253990a84fdb2e0b8. 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/COA7W2391065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85159f0c98a2b6beda35d908188ae1fc2550c34bd7b027d7c2b7bd7ac9c2be7c. 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/CLKT22204130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb465b8aa2f15ace744c6bb3f1ba405cf78c60dd0b2fe2928f2a29365a89f101. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2144648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abd8a2e97ca1dba30d060d93433f4056445071263ef54e59a5d4099b11b8a10. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G2134403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f1108b926c2ad1e4a18cc8db566fef9a76ce764c5e8d02063052d02be2f4f6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES71G2060799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624b20170b07864ee0126ed47b037c51653f4fe4b7ecd31125488f9833c5e951. 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/ES71G2008270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5e5d62d41ebf867de433b37eb400f91ee84789e49d521c3e516e7cee2b5eb3. 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/ES71G1864574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b81f5abc00ff6c4e6548fc0dcd3cc0e0250ad6dacad41e698570041e3a108d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G1872164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a0d4a354c512b55fe618d427fb23395f97aea5dfab914bc102f6c5a033af1b. 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/ES71G1876969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b81f5abc00ff6c4e6548fc0dcd3cc0e0250ad6dacad41e698570041e3a108d. 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/ES71G1872164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5e5d62d41ebf867de433b37eb400f91ee84789e49d521c3e516e7cee2b5eb3. 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/ES71G1864574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63837840ea9665f8003c9404f1c26cbfb0b9c5b396e2a0794e25727b87111112. 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/ES71G1771194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8c2d5d7625fe220fbe7616759cb62826fab0d550ff09e6163ee3341ddc8262. 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/CLKT22103664.
Caparazón Contento (En Vivo Teatro Coliseo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e731067615a01b179a387c4d66423dc03ded67edde1030406abd28c6ebdcb1b. 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/TCAEP1915204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a16800d99e034122f55d78aed6a8d72e41581ac9695f778ab5133a9f907e02b. 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/QZ7362000294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d8800ec7a3a392f50a049e49fee20a1b69ec97fe69bba5ad73fbd66e6ba1e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G1727846.