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 0xc597c1fdbdf2a9ebbe2148b00896a56abcc26033346b1a9d028551472428f767. 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/3d086cf2-ab1d-4b2b-9f66-0ee7afc64cc6.json and https://artists.proofprofile.net/proofs/artist/3d086cf2-ab1d-4b2b-9f66-0ee7afc64cc6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Champeta Urbana Jordany Productions, Vol. 1
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 0x28d5489f8b28efbe772d5a0fbf38284d9069a7afc0464f7ae11d21ed38ea9eaf. 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/CA5KR1506724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c50615e5fb59b4852635c51601135f73fb006613e3dea10ceeaae21825bf7e2. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/CA5KR1506729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c8a741ac813d2771f0831ff5d7d05529c6fd50acaa4deef6e0d0facfd8e291. 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/COAKK2000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeb336685659db55433cbe8ede45cf446c31e5db2bc4c0a63ac70d4ace543ba. 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/CA5KR1506730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d6ceb991794c008fa445065770f6e55d7013f6184ac702e732a448b8239398. 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/CA5KR1506728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea14d2587eb9157ae6bb06ac95b852e7706e4ff2492989f971fdb863ba39658. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/COAKK2000111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64c457412b1aa1a32bef30ea3e1ca50935b90971aa0e007db8afe3e0c4365d9. 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/COAKK2000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd57e43b17f77e3698bd8dd55cd61cb666e8ceea71acbd773f397cab44cefe8. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZ5AB1854369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52225b0781db315011a0daf6130373fc540e4830c9047cba1f17c3cfdd45b70. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/US7VG2080459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb445726faebc3b227bf75fc4d474f8fdecc7bb8cb2fb00c85803a208da20e1fa. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZGLS2087602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83912b906c7163a2f76dd7f8157f573da392cdcd396a26f118881782e60c686. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZMZ92102287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d59c4621d11df2af834522208325bcb0da36b6482a955bc688231153b7acf9. 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/QZTVM2407135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b31a7edf71aaf754dcf92bd267c2b98e1b3b861d3ecd7933c3a08c7cc5ed5bb. 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/DGA062015733.
Concierto Virtual Imperialista (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e4702b0da115f14613cff25c09988021183388f6bf9152bbf4fcd6261e1b0d. 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/FRX762041617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb376ec972863c7eeb4e424c3508d19b69fa061dfa728b575212404956f72536. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/COAF42491088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8003b2989ca461b8f9c4480055615e5642825d3724b18cdfb14f0cb5bc8d110f. 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/COAF42392450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118a769eb7cbe4431ba429eee0a372a91d9c3721d96db289928c871114d64492. 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/COAF42390253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c99d6b7c3e4c701e507720f2dfde2b53ddd967ed07e2c4b92ed1162e56ffd6c. 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/ESA011993287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f638e10fe4b8cdb851ac69c4fc08d6405ce7aec71597d8b68b89c7ff8c3d4a8. 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/COAF42495658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365b7d23c391e7a3901a31e4def133814610d7a10449002e2fa60d04f087a732. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/ESA012064450.
Imperio 360 la Evolución, Vol. 17 (Dándole la Vuelta al Mundo) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2407225650d00646a5a4ee698fd59de0ea75a62f9a93a446bbb5d03a79a3695. 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/FR2X41976167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85453c731bc48b2d52180326677f747c2cb422f4aaf211100702659bfa623a38. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/FR2X41976171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4355f4dd3604abf38b2d5c9d8f4d05ff6903e5a6d09dc99cce4c7c329dc70ff4. 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/FR10S1898060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf83f348d53e33e375e37065f582907e2cdc60205817c36118eee2f2d1640106. 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/FR10S1898066.
Imperio el Máximo Líder, Vol. 18 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43264e2691e05c2cf2b43963f09505431f4ab0738b1d3c1dd40c65419ccafc31. 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/FR2X41944807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d1c16843e87b6779578975937dc6b94b0c28c5b7c293526a75321cc0dc54e3. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR2X41944815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9880c21dc731b44d8349ce9f7070703076ec0df0dbef51cffda8537cc0358e8. 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/FR2X41944826.
Imperio el Profesional, Vol. 15 (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b4a5c961993add96bf4e8b8a1ffd17bb077ad5cdd4c51374bf0e3a884f14c6. 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/FR96X1741603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377841f67019409410ab4d7978349070ab8c08336abe31a5b9e2acb4decdeb12. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZN882126152.