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 0xadfe0f0427738950d9f17b637ed9b05fa7cc3f33eb04ba1b4f52bbf1b88863aa. 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/46775cf7-0913-43ce-a156-2211d7d7b8ad.json and https://artists.proofprofile.net/proofs/artist/46775cf7-0913-43ce-a156-2211d7d7b8ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Si Tú También Te Vas - Canta, Canta, Canta
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 0x5b4a387a9f39ee06c82f75c6584e0a82168e088d4623d6e51831180cdbf44991. 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/MXF140200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe882d966a68336f4c91267dea4ba6f9fa4426a709cc960e3591e7ee75f314a3f. 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/MXF140200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18885ade2394599d84e80a84a1f037aeaff8f9530e9731620589bcd0cbe8934. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/MX2332000815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522ff823a479775e457ea53e80d676c220a2cf7b4ae8ad74c4303a5f2b68f522. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/MX2332000821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc04494d451ab84fdc4b0f5c0ce2714a757c52b4a7828680df340d70e93b0700. 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/MX2332100914.
Al Mayor de Los Fernández (with Alejandro Fernández & Vicente Fernández Hijo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091213de2f05dbae0a03cd42c2fe4b597f9c0b958c3944faed0be3639dd619fd. 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/MXF140300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19de792ed3d3e97da7ea2387fb72f2ef9f0e4b896c605b1aef54a9dced95703f. 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/MXF011200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1bbab280491c21d4ac4d008601ff9829f25669229813460946631b6897ac88. 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/MXF011200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f49de9d9908041157d5d66ca20488104966f03ee98c60496d7d0244cd18c45a. 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/MXF011200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d04d625fc4c5f84167076fc3cfc67e335173887286b8f19eb3efbc5ea1353d8. 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/MXF011200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a74fa2c45af70d1e8685a0ad298873d650070b185045fa0d3e23c7d0f1aee8. 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/MXF011200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967363010cf4f4801ddfa0a73bfe85724b2c1e30706ad54461ec26a41d48595a. 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/MXF011200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1624ad10da0c4ce85236c1274dc4c5e90d754bd6298bdf04f582d9d8aa800e. 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/MXF011200054.
Vamos a Cuidarla Más (with Vicente Fernández Hijo) - Remasterizado 2005
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2136b0aff6b167e4af1a7321179af3bfbfafd8939a1e714a43f863bd868aff8. 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/MXF010500231.
Depósito el Penco (Desde Guadalajara, Jalisco)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf807b5228f09081106538d3862c1a63e3127f9e4ff37398622cdd3262b24f234. 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/MXH152100187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acd2942a496afab7a566983aef44070de0afe69fc9270fb1fed224184a22138. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/MXH152100196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176cd751fd7e1f8b94ead65431ee44a5f43f165e380f911337854ad642968cfb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MXH152100200.
Popurrí: Cuanto Me Gusta Este Rancho / Amor a la Ligera / Que Se Te Quite Ese Orgullo / Y por Esa Calle Vive / Se Va Muriendo Mi Alma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a61530e176363c6bf5c0259553c5c20abb312a2bc7b8720a07732bd040c356f. 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/MXH152100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe110458ba99c5e231f54d306bce79ce6855a99fb8aa4a3fc0452c0a389084c3d. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/MXH152100175.
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 0x71d7af60b6afaf5f7a3ce8ddc716ccdba203a9d62b82cb2e56d4af6d0988bacc. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/MXH152100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e6f0b5ecb02c2ee51269dbe89e8c16ff6d995a398e46c47e4eb047c02b5a6d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/MXH152100194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889ffc777bb5c4762e247f8f8690561c7f39db832348064b865e9955d5da3aef. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/MXH152100198.
Popurrí: Me Caí de la Nube / Tu Camino y el Mío
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b722cf351af6bfc3c8ed2c5444619835dfd9ddda83a36b1efbd641d4fdcfc32. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/MXH152100199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f237b6933d0973f267ba8cb5b7c0e2836415ecd280dbade29444c96bdd7fff. 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/MXH152100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bc3c6da4b03a91989175dea5e31e1ab068858f936af8e9f02f3d92ed0e01e8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/MXH152100210.