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 0x6185224e600e24dbeec5b6e404a58ff4f8711bc3af1f61174266d4f636f3fbca. 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/7dac0899-2888-400b-b46e-463fa6bd2a98.json and https://artists.proofprofile.net/proofs/artist/7dac0899-2888-400b-b46e-463fa6bd2a98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fiesta en los 30 de la Novel de Martín Guevara el Father de la Salsa
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 0xcb51395b2c89b402af37622c1b0e8dda761b6a446dc53ba25940948cd6276f8c. 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/USCGH1880935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be529ac3c9acd9bbf62fc093e524de139940f88a4416eea78c7ad4fe48cd666. 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/QM7282006839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba74eda3d4ecde842421d57362371119159aa72313d0cef5289560d220c6fa5. 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/USCGH1880944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba68f9dabde833c77ffede4a63ef6500d8573275aecc53cf2c189819e9957d17. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QM4TW2024067.
Homenaje a los Grandes de la Salsa (1976 - 2013). Salsa Peruana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6635e64c74619e01ecbf14c193570eabead679979b30dfa1d547b64c75f484. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USL4Q1767027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa96b5c1b8b88e9661705e78be38889088671b8d46b9c96918118f3a54f5f38. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGJ1851674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd252e9886a038ebfe151b9f844372fbd8dd2f28c1e014ceaaa449c2aeb65451e. 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/USCGJ1851683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5736935c353fcd802e6254c26cdb1c38080dc2c12877a48066a9899f9da0a804. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZNJX2137094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2bdf7979bd4d052ac40af8d742957e79c22aad08591f66b1b045c8a2967b44. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QM4TW2231714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb4a1f80193602862bdec647f582b2f5912c667df2761078bf88c305b903ad1. 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/QM4TW2296892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f5a828517e479e0934c65e076a728d5da9f56dddc4beb24e67480446f758b3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QMDA72205816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fff0a1c14ab51d4175698143e8e620389f173c8cac7263863a5ce5614d7791. 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/QZW9K2397600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e383e33ee2cde1d5e39e2a87d91587daa1e2955ca7391473ec668377097da5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QM6P42093122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0547114a847296ef108d3f46fec957bc6d15ccda120dfd33858913e3c6368c0. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/BRIMU1800401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bd63b4a3f3a95a47884ad12037416a7c982ce23a513751e7af1e312ef87a21. 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/QM4TW2024072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a08e4f50cf0a5a942a2a29a0b3a676b16c213f8c1c6b1f400c7670a508c0766. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QMFME2420268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc852bd55f80700fe3461fbae6016796a663dac0f617098a4aceb98ceae93213. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QMFME2420262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf85f0d6788c251be7cb76d756f94753ea3515083e3dd22824daa952ca066b1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QMFME2420264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f5f6daa33f1dcba39e42b7d5ec1efabcd5917dd3712afb5b66a9a060fcdc67. 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/QM4TW2566193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e7d9bd15813bfd4b2c0c5147ed7bf93a45ad8d9da8e4d0f91e008d75913583. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNJW2359643.
ZAPEROKO La Resistencia Salsera del Callao
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c2a2afa10f1b535ac7b4c456e0958b5aec697d72213489ce81259410357805. 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/QZGLM2170649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd04df992377648af1baef403d967af61f55f4298ec24915516be6c4ea7856b. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USHM22091801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cdd8c65dd3ba708cc940274e839928950d431affdefba28226c7d7c2c1ef0c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USHM22091789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef971f56849a85e2f11cfefbd440f0424a6942b69e84ecec928da72eb27e28b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USHM22091788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59661dae7fd4fe0181298ac8e38b0d0dfae52c0aa31356c400a3673341d1953e. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USHM22091802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb60723d8b2d464fc024b9cada6908db135dba1f0d85bfe4acb53168fab2a07. 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/QMFME2110051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5baebef9c106f866c83fcfcc20dac73123c99cb10befcc1db883d2cb2f3c82. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QM4TW2008781.