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 0xcf72b136ae72c690f4982e5646f391ee785495ea186da0aecde9119285911d6e. 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/963e1e7a-7b38-42f6-9ae2-8e625f34f8e2.json and https://artists.proofprofile.net/proofs/artist/963e1e7a-7b38-42f6-9ae2-8e625f34f8e2.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 0xb5c2d1b057ca1d64d73c0d4394fd14d6c194465e160293e81652d81d89545098. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ESA012040903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1c62a70d694e29207ab2716a0ae90cecc93b89fddde9a46be0d930e4a84437. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ESA012040905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713076d53cfc22a46d75210d2404727cd3df38f00e1d9f598905dbca62d9e308. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ESA012040908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6281e2b8dc40fc20d09abf23b73c06590429fe9bb49648f2ea86cc4ba9ff85. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:08:57Z), 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/ESA012040910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa2cf096f28fe9a95c5e2daddf4f6fb6ce16b22e2b31accb42fbdfd03f0b892. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:24:46Z), 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/ESA012039557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a49d0b144f3cf8dcbca40e8381dd8ed2ba295d0a0067af3c8f23ddd7db9398f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:41:27Z), 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/ESA012039560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0348f67c6ea6778bdba72a9c32510eed7cf3c4c652bac5f23de7f43b49d55cd5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA012039561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a9cd908e200e2edc447e18ae042aaf4b4bf70779147ced6c0c5f22e4e7f243. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESA012039563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005fe7d1578c9a77830c41c56f29b7035e917b5f29f80e8ebd56be1619e303e8. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/ESA012039565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3196bb0b6168284c61c5b114977acce4aaf29239c03452f5e339bc8ac403172. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:09:06Z), 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/ESA012039567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0425df54dc743e22aa25afbf4bd4b331c11b5aefac30c7cbe82f6f51e554c5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ESA012039568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddacc6f019e72c1f91b02b3e9653e4e4e499d6188bfe6e0faeb25ea2e2705ee0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ESA012039569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77af9e786303f5723fc024934ed65f3dec8b36051f971933ad7cf45c2045da37. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ESA012039571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73193ae8bf7b463443509facc7c637cedf806280f7255b966286a616f7e84504. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ESA012039572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3536a79a92981414bd5819004c894a3965f6500d966d2b2f3ce45c4fd58448. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ESA012039574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dc603b2ca85ae53eff32029f46316a4bce52602073c10802b7cb70647c706e. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/ESA012039576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0253ae0b1dfbc7ced5e4110d11f8b8d75b3a455fee8904a0bc8749b6e22fe09f. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/ESA012039578.
Lunfardo para Navidad: Tan Gil Como el Destino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde560db591f81698639e181493fa0529c8a6fc569de171b817c3101178f9391c. 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/ESA012042733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f227a63c5e42c17bdca929acace6770471b8e6713994ea74c3b5d6d0945757b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/ESA012042734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b7912c1dcac92e5ca6814f6bec849311c6dd15fadd0c4f13b504792d786f14. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ESA012042735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3b9680cd22c487f9042ca9752717c13e4c217c54330c20e0b061f9ce65ba82. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ESA012042736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17034efacbdf53a71e9fa2aa8548938647cf54ace3beeadb0057617bde10379d. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ESA012042737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f01752307e90b32a3400e21b664e3f352e2fb2fed7253f34a234bf796e9c17e. 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/ESA012042738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aef9c63cd2c173bc50d7cbbbf04d721c12b3cf7d3f5fa674fd10291a0b5a47b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ESA012042739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1bb21d615054b2271147b313b18405d354a7945ef7f0bb8154039ed659771a. 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/ESA012042740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce74588df2a0af7687b7e1352c4ad320abfa647cb5db802be4868ea6ba14fb80. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ESA012042742.