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 0x84e481dddfcf95619b39d4457927125050bca9d6f675996dc54f8b9bd39df1c6. 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/f432d797-ed56-4b4a-b3ab-bf88de976d6a.json and https://artists.proofprofile.net/proofs/artist/f432d797-ed56-4b4a-b3ab-bf88de976d6a.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 0x280f218d69f0bb689c9e78204208f0efb95d789d8a6e48015410a852b6a274c8. 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/QM7281544559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dbceb56b7d597b8baff7b800168d595ce4efd6fe68ac157ea4b7aa8be9c56f. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QM7281544567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ed4fa79103f7f90c260af798482f96e25d1506d51271511e44fa170d1b3916. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/MXF367218596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f8c42c1953c39c6624d126a372e6b633a7e3bb600d12b9d3d5cc6eb1c9dd79. 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/MXF066800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e6d67f1bc9dec7bd797c585e752db579b0f8651108d4c0d4dc26f0451f444b. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/MXF067000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedbbf791958faea9c0b8bbbdc108714d64de8bdf510a83395d5a6d7d390f620. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:03:50Z), 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/MXF067200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f6327b53b58ba933abbea0e04a4d6132a674bd680964b6039887bad305e39e. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/MXF068700368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8503db44791611a253af187a3b60780b07262556aa6b124c03f485742628c8da. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/MXF067200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc64dee7fd5a394a76d9044c73f0ea8e5ccdca4da622925c969fe85708b3139d. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/MXF066900086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8057690dbd42a92c732ee9a9ebb7803ea9609fd4dd67b091a78d575c9eaee7d6. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T19:07:25Z), 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/MXF067000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9409036302265c5aa258ad1be3d2dd450d52dc64fd6b1fbdd980e7aea3a552. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/MXF066700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673cee5ee0381fe9141bf1d5fe15b093838e9310b66fbd4f865eeaca332d428d. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/MXF066900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc256308010393e46295ef8782cb57d29bd495e74b42f2ae626ac22a7c88cc0e4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXF067200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3655faae01977d188612d512f9070db3d035c30db0f15f733fad427a4c893b63. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF067300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e84503b35106be7211ee4a347c5a422d06559cf6512f3adfa11b2c616a3b71c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/MXF367522100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebbe3fcb2e016b100fd04d3110601c1ecb96d7d0d5d2455bfa1b367e1154ac5. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:40:07Z), 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/MXF367522098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe3a033ec53c4d5168fc5df9cb94fed2885828dd2fdb2ba1eb0f8cefd9a6f28. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/MXF367522099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285ed030eff632b75e2d423d477de5413174e6d2eab9008b93c4c656f85a0c7e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF367421358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7e77455c1f6ef698914d44748554d4bbc3e5ee26875a4ab2a3a9152314887e. 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/MXF367421529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3d2bcab92d12ebdf47e1c65e2440b4d2545f1ffd25557b8f706458ac922681. 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/QMBZ91591670.
Carlos Lico (Leyendas de la Música Popular)
Como Fue / Dios No Lo Quiera / Imágenes / Flores Negras / No Puedo Ser Feliz / Creí: Popurrí
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62e9601a91a839d8d86b7079caaee94d8a40a10eb484a4e9fff8b5732392703. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:54:43Z), 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/QMFME1455119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc6513860643e67fd90da6377ef07e325a5337d61823a880b48fa565ec1d675. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXD941808257.
24 Exitos - 18 Grandes Artistas - Romanticos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703bec993e7758e3a912a73b271d3ec6fc57feb23c50695c9b69d00725ca1e91. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/MXF330911223.