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 0xbe4db7bd3d43a12a18307afe03a177e60d75c0c3d5fbc47477f59a46cf8f43a3. 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/9cc552c5-9746-4ecd-ae90-92089545a912.json and https://artists.proofprofile.net/proofs/artist/9cc552c5-9746-4ecd-ae90-92089545a912.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 0x273eb5739760b3319a5bfe57158ed296da764187566091bbdc13f430434c7982. 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/QMANG2226758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0951f2e0322f13f87319babf48d2fec3b7887b6d7705e41fe2b7e2c3bb9fe9da. 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/USDXS2202911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140082c2aa04cf099dd1fb9e554d50b179e1ab6034eec8fd51da340e0237c7c6. 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/USANG2276190.
En Vivo Desde Los Ángeles, Vol. 2 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3632006e008ea3ccb5b219c6b512c2f1ee1578e44e8e454cd6f59ce1747f814. 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/USA2P2311973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9977de58ad9f895d60632a0aa5754db51d445914b7e774eb4cb28c30b232e8. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/USA2P2311971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eaf95422d0b345412b37a041fcc7edb2af4d2cb2ee2aab6f23671ece96a984. 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/QM3DF2209512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc1301ad4ab9fd4d07caa8bde4bb81a85baa4ff2767a6c143dd0484827142c2. 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/FR2X41912515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa0d33ff22cb130b9960818b05a8c6c5ec4a980eaed11670511ea1f449ea0ef. 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/QZNFJ2403787.
Olvidarte, ¿Cómo? - En Vivo Desde las Vegas
10 Aniversario (En Vivo Desde Las Vegas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd967950c4009c53c7376a818cc30a1f73154f6dbd2440204d257ade7a8a2bbe3. 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/QMSAV1104016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4055c4136487ebba8dad67bdeeaf53109757d03945b3a9eee470ad2939f5f06c. 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/QMSAV1105365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc48fe443c5f34f688c8d84108d7d6ab3525e23c2d08195f9cec13ec05e2ee7. 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/QZDQH1803157.
Arriba La Tía, Desde Las Vegas (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0928bf3f77fe12f13513f23d01888bd74339a2d5a1b6f103f6b89b6f09b51afa. 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/USA2P2474930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1906b39f88a3b3d2bfdb6ce3f3e74212366ab5194ae76f953bf33fc5f6140cb3. 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/USANG1919234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f88e466c862098f74ae0d6b64f207aefc3d37987cc8a285714dec7b7585fff. 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/USANG2448472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30180abf95ee2d3fad63bccf0d9d5ae257b9609bb03bf5d29e20833eefe24ea9. 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/USANG2218380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd835f123508804ad8cf5b5606def0db8ee5f9850f805786b837c73aecc9c5a. 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/USANG2482435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bba75fb60e194b0b5459715741bef3335a3235e84f2dd04b3410340af05f92e. 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/USANG2405080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f88e466c862098f74ae0d6b64f207aefc3d37987cc8a285714dec7b7585fff. 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/USANG2448472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9548dad5c190f5b9062c9328106917a64063b505adf9c3c62d69b12660bf1293. 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/USA2P2311970.
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