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 0xd3f355aee92ac79e599e2c09479860cc2bc1e80a78f1dc416a1db2ead6c0b6ba. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4caa79a-98c7-4ed0-933e-2fcb72617c36.json and https://artists.proofprofile.net/proofs/artist/f4caa79a-98c7-4ed0-933e-2fcb72617c36.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 0x6b3d40d8731ac6252ff1aad58391d83379bca9675cf445910ba5b3295dc45d65. 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/UYB282117004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfca1e20f0586729c3d4ea288da60c462560193b6babbf58130ab9fff9a9c6d3. 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/AR5UH2300533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2887281108ffe6f120f5af20aeb5e736bf5ab0728d0394252c792268d1101ad8. 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/AREA12300958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f19f8b0d51eea2d6be61d25bdf85db5817e204c5a4fcb5ed82c5d534d2518cd. 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/QZW9M2361824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9f6c5746d0a4558c594c7b5b1768dd62deec87198a2ca5f07d4b2572eea22. 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/AR5UH2301295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b204f9892883b1c3f907b09a726efb55b2cb10dc7d73c22a09c020d93fd589. 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/ARIXB2311136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e6b8dba0bdbdc823cecda3775b46163a33cdd41a3a35dac5a617fc922d39c7. 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/TCAHG2345749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36af79317d6adf8d4107fc6644a38df698b2ddce7bd7cf8ecbe4021ca13c3638. 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/ARIXB2306019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd877699ee5ca83dccf2b025f0cda50ddd5fe6dd2bbf63024c96fa0a266368f41. 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/ARIXB2302536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd217c27cd31faa4d9248fa1b3c1dafeccd34a924d552abdbf9e0e54754d5f900. 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/QZW9M2267198.
Gusty Dj | Tirri la Roca - Session en el Barrio #6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f9c095ca40dd161613cabe1fc9b425acdf46dcd95e688b18e38a337e4fe07b. 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/QZW9M2213901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279fdddc9261cbbac0b58ac1a06b29599ae5f0bdb1e421711f199c6e299205bc. 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/UYB282217010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6b9755e7a1654dd3b3dbb73e2d7bca62a3582c4eaf8b656fea753fa95f42b6. 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/ES5702201102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb33f57644180c84aa2d0f15ef54eb850f7db0a3bd6d8abc6be8d5da63b1bf4a. 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/ES5702200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa43c987ce4d6625de0534ad2e2c2cd91711735f3ab78c5bb7f8619bb89bd784. 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/ARQIH2290312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596a7acb25cbdaea63cdc2b07f78c641e2fef2ae507253e8fb5a5b4110cb1633. 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/AR9XJ2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fad3e84ea2e6d5e4032ab6ccb1aa5731f108704c977f7641b7eba1385f47399. 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/UYB282117003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b08d60e84c7200b808836b4d30c649b4b67ece7b01823a3de1f3d9b75c96f7a. 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/QZNJW2164092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0b256ab3f616b670c392db0d776518532e78d2c817a7bda0b3991631cbf617. 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/ES5702101739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18148c8c388944af116fe6c104a45f4e4986121be42e825200f0f5a81cb8605f. 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/UYB282117001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8e5e5ac4aba75b4f2e830c22a9407e4f94b2df7f2b383e8cdcbb4798e384f9. 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/ES5702100942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d479abbe0b4beda905aa3840690b955be6e7ff0cea8f81751ed92a55d80a595. 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/QZGLS2110177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e01648e70d64858cc6df8a15ddb5247bf6a8c2775e8a4b61ad2a551b315b9c. 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/QZGLM2520230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0500ba17000b9e5acf6dd15928302919e024f167ba65d847a2255d1950eb98d. 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/QZXLZ2500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d37ed2d66b6ef1073a25812bc3760d06e5b5167c09078f8f5b805868c8c4da9. 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/QZW9K2486087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f6c53552fec092c2bdd941fcf07639cc44965c8e13327df410982a245177fd. 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/QZW9L2442005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd877699ee5ca83dccf2b025f0cda50ddd5fe6dd2bbf63024c96fa0a266368f41. 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/ARIXB2302536.