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 0x3ad7c76dbc0ca21048ff679c5ea98722685d3d60cdf5ac9afa7a22643453a36f. 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/3ebb792a-fece-41cc-bd1c-efa8bf0f239f.json and https://artists.proofprofile.net/proofs/artist/3ebb792a-fece-41cc-bd1c-efa8bf0f239f.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 0xbbbe9898b24ab4fa747dbcb2cd6ca2e2054c1869d7978b234b1d34d5ca302e6e. 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/ES5078800161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41f09c1ba92e5fc36f13b635cd05ad837e14539be10fb7bdbd229d61cd85148. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:26:24Z), 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/ES5078800162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea11fd1624e6d720baebc14e176e4c88daa698cb2f4d81295ab64184411bea95. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:15:44Z), 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/ES5078800177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460480540b528e727a6106cf67f7070dc75d711f3c348ef1459fe022b9bd24d1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES5078800203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d655022381aaf4d28961ba349e83d449e25641ae94087e76842aec4a65fa91b. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/ES5029000163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce7308f195ecf9b5e5a0a9d153918580b3dd57137bfd7fc3d81f8f9f4161a50. 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/ES5029000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2775ed1a2731e86aaaaee063c8aebb54b2cd5a9ef1960d46b506e93f7836106. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES5029000152.
Cántico Espiritual (Poema de San Juan de la Cruz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b00d27f9b14caed1dc12c4dbd833c104fe83b8d60e24674a07ecd88210b4cd5. 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/ES5078800207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10959434accd0cd715b44a777f95b8e8837b7a9a2d0ba5c569e4026fc2df43de. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-20T00:15:37Z), 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/ES5078800209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa536f369442f35a5ad987f9762e5e639bbd9d0c52a6bd7bce00f12b4ec84d373. 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/ES5078800211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563c0a161e9c6e790d829fe4179146f3c799c6708012eee06f657b608c6c6ec5. 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/ES5078800212.
Sonetos y Canciones de Federico García Lorca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0212d020248ba370bd1f4594065bb1eb76e1db67fee8a3d058653a64ec9567a7. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ES5301252894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2d782ff90de985d8c97d9809ecbad12093b849b390eb76983097797f383b07. 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/ES5301252837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f4e7a16f7e74ffd10479e1f26abbd62185d51e6be2c95c35d291436eeb8f9b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5301252838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec512446235cca16d98bc34c52395fb2ef67086ee7759d6e4aa1d67a021e30b. 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/ES5301252840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8349773fa7b7fd52dbc1facfd6ada11bd8cfe94ac03c6658e07da8165b13cf3. 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/ES5301252843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ba9a2f07dc965da576e8b42fc0a19274cfa0925f28cc5d880c80b18327c6de. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5301252848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b61d4815b5c046c25eb35d9517f1910e2c586bfaa8d33996f21d5954c5a2ee. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5301252849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b77ba3b8ef29f96ccba0fbdebdb34a3d2ee467b2cd3d41b863a40cf98081d0. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/ES5301252841.
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 0xcb719cb9055be474cdafa2d14f91867bb173b78a05e719380cbd600dc705bb34. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES5301252850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23f36e099d1dd20b6399f44e5db3f00e354ec4cc0b0459332d2f63a5008af18. 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/ES5301252853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee9e3b194106ba890d9d1373836b5ef21cba9e418e50163e89e6148ce562c7b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES5301252854.
Coplas de Jorge Manrique a la Muerte de su Padre
Del amor que quita el sueño - Romances y Canciones desde el Reino de León
Canciones de Agustín García Calvo. Libre Te Quiero
Sonetos del Amor Oscuro de Federico García Lorca
Cántico Espiritual y Otras Canciones de San Juan de la Cruz
Coplas de Jorge Manrique por la Muerte de su Padre
Probiña da tola (feat. Amancio Prada) - 2012 Remastered Version
Alma Galega [Remastered] (Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779b4ba9f25f5846844619ca0279ba0afa9358ebce367daead33b2a5dc79cb38. 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/ES5081300148.