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 0xf66f8a8e9b5e063bd1ca9918e42cda453b207b2e6d39a1a09c4c016779e06780. 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/d2636f7e-6cbf-44ea-8a63-9470e1e2762a.json and https://artists.proofprofile.net/proofs/artist/d2636f7e-6cbf-44ea-8a63-9470e1e2762a.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 0x7c2495ce4324d35d69831ac308ad6663e79ca7871d14deab9c8ff4979dbead33. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCAEA1828584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568ed38e9dce2e24ffacd377adfe575652750c00542e20abce400ece419a0c52. 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/TCAEA1828600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8679f35e5bc4093233b15053134904debbcc98e372590ae667023911b59dd94. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCAEA1828608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafdb04d57c8f824f1033fc5525e1bd4fc9bee9dfe498df6f90950ad93aa6f24. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:20:04Z), 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/QZKDT2000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc184a3cf84f280e69b1029cb0a60ca922a3ee1bacbbe0a202343b65418acc5d2. 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/TCAFS2163240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d64da51a784a7aad40f5b39d29b6991c18030aecc42343ec53710630c752dd. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:32:51Z), 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/TCAFS2163401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x053a40bf2e8039c791069d6414314169f8c13939141750f8b82c059b5f74df3e. 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/TCAHR2386398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6a08dfb9222c7d1df79da3c03e9df5c02fc5ca8341979f1244119d5c241962. 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/QZNWR2496743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77e0f6258a110d4ef97edbda36105446f7520a8dbb8cad40f753a83dc426279. 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/QZTAY2377743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1471b710350fdf8916d7413b7512da68e4be76fbd55f23f68e91a352dd155c9d. 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/TCACN1659905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4a554036c85b1dd4db8ffdb77cc832f05cdab592d2acf64441f9b582da85a1. 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/QMFME1460653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d602b334ebf197789a40e7580306db1b84620454882b7bbad155fcac97327d. 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/GBRKQ2409422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb1d2dbe0dae198ba6cd2cc1ae40e5473802d487f885ffbdf5536776e01002. 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/QMBZ91588008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd908ac4e85325b5a94a519373c2864b79350306300813c597957855c3672d988. 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/QZQAY2464751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c43043052b78547e78a40f23b8c9717372c7fe44f2ea188d6f5969703167328. 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/USCGJ1467685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8fd976f3725897270868dedc981f121a38ee110457f41a293e0c883cc0cf4a. 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/QZNC62102653.
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 0xa909144f2fbe3f167271d256b14351c5827bdd51fee7cfcb11ce6b18e4866b0d. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/TCACQ1629479.
Wea Wea La Familia - JMX Dimenzion Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c746af561e37df9deb6d85d7d1e9000c6268c82ef171339dfecea7b559502ca. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USLZJ2316260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05601d398cb7ebdf14a60754ea8a5784f10cc8afde7b87022211a38b7189ca8. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USHM21579936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21ab416ce746f82bb0bda4557396ba82bb97b8138cb83dd4daae0b36a419446. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZWDD2498511.