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 0x0a422ff82734918fae90ef3188947fd790c78f09ec253723ce27b01570832a89. 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/dd2c2f23-6f7e-4b69-b44b-2b74bb738dcb.json and https://artists.proofprofile.net/proofs/artist/dd2c2f23-6f7e-4b69-b44b-2b74bb738dcb.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 0xf03c1b3ea65871ce9220a7d1760ddba2a39243535c790d9d15591e90b1c1ddb2. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:29:45Z), 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/QZNWS2131066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf1f49a362fc2ea080cb52c53b36e422005a1fa1f612023dce0a9dac58c2b75. 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/QZMEN2255487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5018f0acb914e8d24c64d8aadb6513402115e26d1fb1ce705e37831a87620fd8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTB42265778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29bd0dcb3b73d4e660f96f2241909902c4063a35d1e01bfe0d7e051aa6effff. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZK6L2334391.
La llamada de las marimbas (Remix Tribal)
A QUI LLEGO TU TIBURON (Tribal Guaracha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09882d06d233e5ce2657f01178ddf849c11170c0c12ba7b9c3395220726f6b71. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:05:55Z), 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/QZTAS2339588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ead8e1eac2d36497f775563fe55b8cc71d8817062a03007be3d34fdbbe55f8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZTB72353430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd5297b84087ed7b6ae6b3d013a053f413dcfef48d536c837ccfc46001cf365. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:09:18Z), 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/QZHN72492385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f8d823151910a1bc1d0e4e371758fc7012aa6efb4ddc3051163b109fde013b. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZG2X2408666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94da331ed1b3d9b3d91a05d0d76cc1704d746e40fa00a19e5f1f9e1e6f6cf1d1. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZFYX2564389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c1da78c8f6f0e8b226db8b3375b101cb1c96f9e89526713b1d1a2ab89b03c4. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZDA62509174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614218e8fd123c959514aff6dbe462a517b8e9edab5d068dc5d973b3459ae0a9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:15:02Z), 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/QZES62502668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698790b95ba601f83bc27ff786a848e338c02bff7c44a649af902146a4fd83ff. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZES72501208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e900302abc70115dda4f81defe3cfcc75ddf82163f53925cfa48cb8b631b4b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHN32591123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089dd4e1372e75aa7981ee692732c44daf73badbf3f782630706fb6a4654ba84. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZG2X2415892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bfd19793b08a29edbf305c3fffc632694f3244786e86eea244a28dcdf211bc2. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZK6J2523720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e836fa4d38ebc35f729b8e1efcc202c9ef399a670e1caf7e1c4e1727d75318. 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/QZK6J2523721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61248e5d5f009788600831f6436f57a6730eda8ce3db16b69b6792c891cd3fe8. 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/QZG2X2506385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab118b905808466c446e29c94e3eed527be51e8f6f6d8efdbc1ac4c2ae3ca884. 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/CA5KR2296248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0304303d7eb3ad82dd95661c80dfb6ba9de6661e069733ba436ca69ed869df74. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:48:23Z), 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/QM6MZ2418298.
Sabor A Tribal (Special Colaboration Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c83915b096ffcc7a2531907ae1dcec2e04c0bb73d6c6b7cfdcc60a505c9d64a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CA5KR2450253.
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 0xed3cfd31fa667d537e1fdea088c194c9191db08f75cb79df005853df996b1414. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CA5KR2380049.