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 0x4f6280eb2a98a5727b542eb9edc3e017a837ae2fa23e8e85cc1cf3c1fe35e1b4. 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/4af5982a-2b4e-48c2-be3b-0147b05dbb7b.json and https://artists.proofprofile.net/proofs/artist/4af5982a-2b4e-48c2-be3b-0147b05dbb7b.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 0x959c96161c9c3116be091db5da63c78e4f9446d664ec00bdaaab89fd624978ca. 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/ARF850700549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f8ee86a0b8e1b21cdadacabdb871ed0024d3bbbceb920b8e7546d3e952cffa. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ART381300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14000289c372f84f535eb2edb7776205d0e8f645c4e28c4009fde0fa6a19f5f6. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ARF841400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d542293911db22396dd65541cfca6e53d33e89525b92f37c0335b487ce4115. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ARF841400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df708e12bcab672ce7cc16d76ee6fa49a0320ebb8148b3c4f5c32517af0e731. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:28:21Z), 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/ARF841400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f2a9e7fd90050ebf8028b9c4a6d4d63986b34a71ea08f41393ed476128ca75. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:33:54Z), 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/ARF841400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa514291cc7ad45d1ab078c1981e48036d46dfdb25d7559654ec88a7d9e8afe40. 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/ARF841400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c16744b1218b9e1dbdfe9cabc424ca11ff3abd8963b21e4a1349a61a672be7. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:23:23Z), 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/ARF841400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9c91681ccd6b0aa22b664d58c16dcfdce964812caef54f6d0082df26444535. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/ARF841400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd7d59cf221897a03e3300439d21bf0903dfa3b74dfd91021828d008678409. 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/ARF101800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b809872f3f42c1e93c7213a86082b17dd6d445d3a290bf528a4c99947ea1fd0. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/ARF101900389.
Sigue Girando (60 Aniversario en Vivo Luna Park) (feat. Fito Paez & Fabiana Cantilo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408fd78afc7966dd82fd69e467527c4ff8c908431b45ee7de023c9b8289eb589. 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/ARF102300097.
Bailando Conmigo (60 Aniversario en Vivo Luna Park)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85a22afdfec02df5e80f3b084680b813f177bcc0fc674e6d06460010e4ef8e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARF850100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743031a0837b47f07ec4032220d1024e038844e88f630add2944c8aae0b49faa. 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/QM4TW1948280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150cdd9a527c7cf0b851529c187bb4874de4a14eff75966ce7d1582245e1e27d. 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/ARAE52300227.
Una Canción Diferente - Remasterizado 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85a22afdfec02df5e80f3b084680b813f177bcc0fc674e6d06460010e4ef8e9. 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/ARF850100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae510a0b1a255018a14832786b1115cc07b41744807cd1a98cfe77f5d743755. 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/US6R21218938.
¿Adónde Está la Libertad? (En Vivo Estadio Vélez Sarsfield) (feat. Juanse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aaca8693bbcb0df56d7365e900966e255eb15ec5acecb62b2b87ea9c518594. 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/ARF101600587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1288c79928362cb21ec1f227706da4a6062dfc944862528b05bf97ddb1edf73. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/AR60K2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a1ddf23ab3e563be649b25dd522e5c0c15cf9b80288439fcdbb16dfc0b796c. 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/AR60K2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1e899b5adf4bbd667abccbbf9f67c3159189511c1ab3e342aa9c5977ae15de. 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/AR60K2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa588db3d5a6aea7ff8abe77c4be41d79977a802a25d26438fc6c330f555ec746. 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/AR60K2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae81a4d9a09c6c17e4901b390762bca3768dba5db65dda730a048a81470a62c. 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/AR60K2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac98219f1940638ca4ff3c5dbaeb22078d9a8eb75494ed283a53459cca22878. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AR60K2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23f7ecd148fdebb0f2828ed258986a5ba895631b8acf85cc06af83bc2c5e5b3. 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/AR60K2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c6bb66d9ea5d134e71f912e78cc4f823c2a5f8540cd1aff8b00a40b7b2e658. 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/AR60K2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a589c37dd337344fa19e20a30a7d2b1a6a24f15c2485e904d7310933279275. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/AR60K2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f0ee0bebfd920c87e28ec7e4062551865e7b96461bd976c146ebeb6b76af9. 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/AR60K2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60272cf396bd94978d29fa3431ceef7f04f2d89eb5ca23dd33fb8c5b4147e3dd. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:38Z), 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/AR60K2100006.
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 0x71fcde3f7615aca254cd685468398fea5cfa6fe875adddc5b87b84a94170bd6b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ARA821736294.