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 0xdf77960c980a901c69249c2f27c67ac5d19c27500a6ad47d32beec6e0365b7b1. 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/afbf09fe-96ff-409d-a951-5f9c15c97544.json and https://artists.proofprofile.net/proofs/artist/afbf09fe-96ff-409d-a951-5f9c15c97544.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 0xfc5c667d4dfa4f8bacfac4e3be1f458b50572cb806b026ad8a1c160594a01fec. 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/QZDQH2357643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a87e3293b5cbb9a3b6c3da3c1ad2b83bfafa945a1fe136a7d168d2e6ebbcf2d. 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/QZDQH2272784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7986061189605bc9a657715f98212a0148828b646597b275cfb012ea5100c776. 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/QZNMW2205308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265585b7a973f0b987128edda2fac8409739313c28ca266c9e10afd3a9a273e4. 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/QZMWW2250434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd0320f517f87ffd57fd640e372da416d2ed05567317e0ad56a9d50d4a8f808. 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/QZMWW2250435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3746fbb589cabf8e7cb076232933879a96a4a814b3d261d7480e4d95867279f. 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/QZMWW2250437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b899c665ebf3ed25a549d5aa0f375d6e427f1e93f39b94b95a5f3a23f29651. 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/QZMWW2250438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe949d2bec953e98b07c68b71053a79677877c60a175b6f520e9697d25836703c. 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/QMANG2241171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88da9c6b91669708a43b7de7d6713631439f65f73f482462e6d2a39ebf31edf. 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/QMANG2233841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c98cdc0107d4738ff6b912649263cf1065f0d1066836bade227f42df76acf57. 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/QM3DF2275575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4029ca2e96b0c23f4da1e3bdd6dd9677bf45db6d4905006d7b2c887ff6104da6. 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/QM3DF2266985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802440b2e3cf69cf6b0fd2581e19eb6c713c4a06ee6e5f45cc72dd909d1c77ec. 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/QM3DF2207913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3d996c63ab8ddd5575338bd524d9720e431353657727d72c8781eba2c241d0. 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/QM3DF2202834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32808262aa29246d04f11e1299ee6c10e52aff1e84a152190097d717f7941328. 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/QZDQH2357570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533adf433eedd69bd893d0bd593c556d047aa31735775ab186d1d699bb165fbf. 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/QZDQH2357571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068513f67c678fc88ade8daf63c58a4f75c951a8afa59182139514cb31254c5e. 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/QZDQH2272617.
Popurri: Paz En Este Amor / Aqui En Mi Corazon Tu Mandas (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2f07dc9e99a1759d11f6258984a4f94abc806429f7c08c074056fa07640e4b. 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/QZDQH2272618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19419fc7817678c0361f3fa87be070171e162a8b1ea9aae6bc414af7e861d7df. 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/QZDQH2258343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa360651ba72f4e8ae16cb71c6fac9a7d13bf68ba41d09c0bb33f9dcf64473b0d. 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/QZNMZ2135344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3e1f89d3413aefef3632bcb292902ad6547f38dc826caeabe3ce344610194c. 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/QZNMZ2135345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e78e65bebd5d464030a3779857db665d41bf4ffa65965cf77c043fd13f3f1ea. 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/QZJG51708128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6544ba8be5249d270b25e92d8da01086af24ec97d560d4a50ac1d3cc4c7e8bb7. 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/QZJG51708129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16228f30d0913ac1176120c30eba41ec4ee5b42aacbb70503ab80504605001a2. 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/QZJG51708130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fea6c8111fb7a108dd79add7ba20bda0f6ec53dc7fc296bc2d6f2cb9229eb58. 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/QZJG51708131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bdea9c12ccca78fd45880fcc8850bd528c1ace80d18d2640f136bedff06357. 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/US3DF2402102.