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 0x205d18b3e677e672096ba89cc9bd9eea2f480999fb83a486eb3872d72aca6ddc. 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/6def6278-e6a2-4758-837d-44ad797ddcb1.json and https://artists.proofprofile.net/proofs/artist/6def6278-e6a2-4758-837d-44ad797ddcb1.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 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 0xc38800b86e629c86bb68adf292866003ce1332d1ea128e4ffeef4e2f161188fd. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USCGH1522670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd36c958ab0d4361391f25f4a20bf78514ef63abab262ff0663acc81d863fbcb. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PEBQ91613208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01352c68cdbf1b0b2cb7de3734ea843ceed4e061ebae87db4a50ccf78b338f4. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/PEBQ91613212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a58051f149be3adb317d18faefce0450a1680d1eddd453072ab1f222e1c0218. 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/PEBQ91613213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fae770c65261f429853c93ef22d1fd50e37c9d28240bf6eba35488a5229a0f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PEBQ91613216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799a7498ab332a806cb50d285703217f3cf9f29b4bc186a9f9b143459145b51b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/PEBQ91896946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9d16707fcb93fdb45cbe51979a5e039b81bb7e2b45485b6dfebaacaa4d11e7. 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/PEBQ91896945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105e54e29d9ab4a1ccf1d5f9757db2555fe2dca4f081dfad04ce5a6a9f9be621. 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/PEBQ91896947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bdaec1742ea08eff800fe8043c14d153648cccf58740853b037b3594ac63c0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/PEBQ91896948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9237724807331c0ed16a5b94f7d00cf6036f311d65a53b6c44b843514c3111f6. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/PEBQ91896951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbeab3401e95308eef7baa58bb007d77ab4f41686ae5a7daa20732c58c2b580. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/PEBQ91896953.
Casi Siempre (Sesiones Ayer/Mañana - Can Can)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0485f0d16b7bc1b6373184f58a3212a5f7b232c9f0f9a85989571218b25cc55d. 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/USDY42130047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f5bc2954179e13de67e788c5e5a1b0dfdaefa7aa446e017bfd8c5c605578c. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/ES71G2236430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f44de09ee1285cc9559b916aa274f837da50a122124f9d74a6149b43be2fad. 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/ES71G2240155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba6fd284dda268786b0890a2d2d04538b83c23993d0daa1907008a6d3f426ee. 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/ES71G2314589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d4049393214d51df0d8ed064b7941cbe46e6ff829c9633d16c33cb00b969a5. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ES71G2319224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abbae85fcb66aa6cb99ef7552ccc1bb33919bafb4c2638b8076e05c0a5c1d49. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/ES71G2319218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dc68e7d30cdb562e6c28d8c54d1643b0b51fd2d4fb09dcacba6827d7b041bf. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ES71G2319223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ea7a4cc1ae682250c2142a7e8666e6fd5ada8a5fe210fe00451136f9f3c1f1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ES71G2319225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407db259108724de89b1ea991d4122739c4cb25e00904c272c64f322354fc84e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/ES71G2319221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba6fd284dda268786b0890a2d2d04538b83c23993d0daa1907008a6d3f426ee. 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/ES71G2314589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74f5bc2954179e13de67e788c5e5a1b0dfdaefa7aa446e017bfd8c5c605578c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/ES71G2236430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720eec49dbf4d1d0897ebf7ba32e154684643a6efc88bbd9fe1068a8a6950d25. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ES71G2319222.
Malas Influencias (Remixes y Reversiones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dbefec08f88705457fee7d67dd3ffadfe5151e3e137b715ac75b942b5136f9. 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/ECA131200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd788020c3ac50012a616697ee8091a5f22a2006fc5e73ca5b93e518e716fec. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBMA21981263.