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 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 0x8438f7bf86df5b97b2a3a612613b0de56c37b2fd8dee5f0b780a3eeebce6ef69. 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/5535a324-f52b-4b14-9dd6-3bf2c5c53c05.json and https://artists.proofprofile.net/proofs/artist/5535a324-f52b-4b14-9dd6-3bf2c5c53c05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mantra de Seis Silabas de Gran Compasión
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 0xf57fa308643bee7d818cc8fd28a514a11cb98db7e7aed543fb1400b98e39e456. 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/USCGJ1645895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde2ec0a0ed016236e58704eb35cc117dd92e0243039a0c714366057e131c291. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/USCGH1945605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d278771742aac4269f25947593d89e36e1e0bf4eab983451a34b32b967d747. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USCGH1945606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61d47b8e0fa9d6173e7a3375935f21f529ea763e62998889152727b8db2633f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGH1945607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51261fbf7e2895abc3836444bdb25ed764cebfa6499ac00e856e70106418e224. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/USCGH1945610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3593435d4fca15c8af48aff2c647a6bb7670f1503116a5f74c8a79d168cb3f. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/USCGH1996256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec81122582af80b5a4588110e8d2b42d1b8c27660441bb55e230b6b90bce0d11. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USCGH1996257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497d5a11d2e521221e3d1f8f099bfda52b5a211c839698e3111335261a9e8b06. 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/USCGH1996258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5c5d8309e6e193d57bb276e129ad9c9be78baa5d299b463289cf4cbecf1826. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/USCGJ2095523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03ef2f5027af9dc0701cc93568191e6805933a83121b1ce8605f09b3190bb3b. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/USCGJ2095525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10e3420317ab8449aec7f5e422c6d80ee7cdc8a2f9f08aef5699c56f8e711b6. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USHM22074473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb726a5ded7637f7258add2d593a9ad14e6ffcb839d33dda7c118acdd1c58b6c3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM22074474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99e0c19aa126f7189a7b7ad87a123b99d8371da8d3a8a281b24b262f55ab65d. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/USHM22074475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3f43734761c2ee48910bf11237a1d5bfc1b6309576c420bc4ca21e24e935f8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/USHM22074476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7adc7310ba7cb671a4747e954366d2802e5367ecee5cd2e0ba7d9b5ec999359. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM22074477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64cfb02b2307521c4be4bb8854ec6374334c773aa66a8871d08aa8ac24d211d6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM22074478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b38a52041d2c4d14fdc154396ef763346586171c4d8cc7889e03e6321919e0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM22074479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d04f6a0480b3981543042af18e2739efe928e572e4ac73ea0745db49adfcd1a. 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/USHM22074480.