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 0x17f114056e5812ee7929a7a9ea25a437f5f80944fc11b8d94eef770cec02421b. 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/9367f997-1d81-4457-9158-b8dc5de984f7.json and https://artists.proofprofile.net/proofs/artist/9367f997-1d81-4457-9158-b8dc5de984f7.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 0x31083f6aa26c824407932b018723b4b7b290b0a566f5959d7afb22f8e00f3b9d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARG601200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275fa054691ca993015e5104451a870953b55dc7b27b6dc57c5695b884dfa3ba. 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/ARG601200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8df13001a39ec671d97485b23fb9f5e1be3e5c3f47ad9c6e5396d066566147. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARG601200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ea19e40234f0e1a2dcb869c2cd98ae917291d8609c7a991acd62115c310bad. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:37:36Z), 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/ARG601200283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd32027041787b7ca98d00afe4fce59ce61d7142679ed29cacd2c4569e569381. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARG601200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31de89eec945734e0758cbf518f67c930778b43734c29db3572602ebc5fd10af. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:39:17Z), 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/ARG601200285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84096ab9d072fedcc22c9dd3994f7b32c1742b8ac54448ed496d92c0d3bafbb5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:59Z), 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/ARG601200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18e387dfea5e482c53e4c191ebbcaf1a48425458b2cf45cb44830325d7d243a. 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/ARG601200292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdcd26f8c0f2e1f4b52780c172114d2a2b5641e38069f85de11e5e229b80c09. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ARG601200293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c3fdd00bd6c511165f337eccbaec59421a5120192d13f40a531a12f60167b3. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/ARG601200294.
Ruidos y Ruiditos (Vol. 4 Cantos de Cuna y Romances)
Ruidos y Ruiditos. Cantos de Cuna y Romances
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70fa594f659aa8eb9a4af8b73c9da91a9b5e08c6fb2ee9b49db8899842fb1fc. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ARG601200296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a5225d22a3c907bf6eba767cdd02888ef86a176aac1c46108411d2b7f14383. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:41:04Z), 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/ARG601200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c2106c6fda10a52624d664a154e690511bff013c4ed6baee3f49fd68cb35a0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:26:54Z), 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/ARG601200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0410521cc5aa19ae50739db4d31e7cc57a4b84b075a95fc9064e2176438dec85. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:59:00Z), 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/ARG601200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1871b4dd26018a1019c956985a930adfd13e879c0289b90a8e300fec2f678220. 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/ARG601200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7c72f96877c93a20d75c3c55a6c2664a1cc4bc9dc4bbc26dc030ead5235667. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:55:44Z), 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/ARG601200301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc929108a615ccb1a4d6d00317e2d6ab794f1475adef9510563ff350f05510e96. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:43:10Z), 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/ARG601200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2af125dca38c5e7b146fcc0b17e4da233d429dda4e27f45450d9a75e2ef8d0. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ARG601200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea08cc1f2690e8dab6fde997ec97fe11c9b931da7eabff153108236f3693278b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:16Z), 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/ARG601200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42762faee645a8ede3ba59b7684f23a2b6d8c8720792577aa37927740d12847b. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/ARG601200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632a8df5c9b4595caaa8b9bb6e1049c07e2b09c278ea32f59163ea9f2963ad8e. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T23:44:48Z), 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/ARG601200306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bbcf60137aea962a5a0cf149ce9ef0cb0b7a6a2dfcfc558a13f1e2f5eeeddc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARG601200307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0fb304935781f070de0ea48c682bcca129875c82320eb2be63a7929e6083db. 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/ARG601200308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2c409bec533fac6ab512ab2190113bb8d25c706a8f63ed22ff38e286d63440. 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/ARG601200309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55cb60338eca9392044be06c3e8d187c859e4d4d8928f381222be497621a73c. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ARG601200310.
Ruidos y Ruiditos. Cantos de Cuna y Romances (Vol. 4)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad611f794493f112652fa671215db1901f0ef8240ad8d19ae2466c77567c2844. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:38:16Z), 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/ARG601200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad566dcac81a0c91937e59de2797396dc50b83ef679bf25fec72c918a0b27e96. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/ARG601200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1643be014ae5a5ac6958f144df08ff8910a17924ee00ed3dde773337b9c068bd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ARG601200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0e48ccf2ab40b45737497e0009a247509a9fcec5ef686a0d4fbde56f5c88d6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARG601200278.
El Corral, la Gallina y el Pollito, los Pollitos, el Pintor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece64a97b0bac231d4236b6d8d4840aa6a825927a7316645e4c6a6735b62b699. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:57Z), 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/ARG601200279.
Cuadros Sonoros (Cotidiafonos Volumen 1)