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 0x691682bbbd39f69166bef245c881052dc2b1689a2e74dc24942db09661f7b94c. 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/260dc1ab-9ec2-48d1-b716-ff17db3e7461.json and https://artists.proofprofile.net/proofs/artist/260dc1ab-9ec2-48d1-b716-ff17db3e7461.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 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 0x161f1659b5d986b4b5dca96d9bc423d6b975a8e86a618898fa510527537089a5. 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/ES71G2302536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3088b9fe1fd8cd06d6f05f233db8a957d6afb776527611452912b6afdea408ea. 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/QZNJW2199805.
Mix 5: Mayores - 12 aniversario - En Vivo
Mix 5: Mayores (12 aniversario - En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447dc08747e41b38cbed0ba72560fd47e3ed8c7ea4e5a2c925dc5e728a2a622e. 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/ES71G2418795.
Mix 2: Tu falta de querer / Ya te olvide / Simplemente amigos - 12 aniversario - En Vivo
Mix 2: Tu falta de querer / Ya te olvide / Simplemente amigos (12 aniversario - En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf034879c8a826f050dae8bfb577e0d9f5de8713a63c58bd0c6dde27071211784. 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/ES71G2418792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ee81d68a43d818d8b9c9a152b2a1585ed29bd615c1ca8661d0042020d30fd5. 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/QMFMF2053615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a6c9bbc5d8cf0ce229e98292d1e67b846149719e8182c3cab9884b363b3d37. 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/QZHZ52016094.
Solo Quédate en Silencio - (Versión Salsa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe46d6aabe3b25028b233462a095eb2cb4d4463f59e6c972f7368c9762d301d. 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/QZW9K2337544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c698c08fe1c1e02552a371746b1a21d19155e11ce8c1ec731365f85b7ab393. 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/ES71G2032814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2637cecd9b1097da00a1ae5aa45b1f9e24fed90630cd79fbcb4708f9b2df923. 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/QM6N22141550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af8d1303032915bf27623e467e15e5c2dfa6401e91a0cdf89be393aaabac123. 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/QM4TX2002670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4378a2e47cd5de020eaf32c1a11b1150645550c5e99c44d073ea9ac577934c7. 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/QM6N21926798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f82f7383982ace8fd9a8caec0d1039f7a4a5747e8255d616c00c72a22b727d. 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/USY242402564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe676237968931f08b59565ee8f6e779499f6b7f77535b31ffb10a7d5237c3e. 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/ES71G2202129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bcdcbacb995ac3e340fe8dfc92d54ee89ee651ec1632482e48f95c87bb47c7. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZGLS2546593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c85f93254a7457987ca5c81babbda64c4e77ca29f02053c9a9011284ef2d638. 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/GBRKQ2050281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711cba8d72cf3c2a7c8a3126f618ebb2f5565e7437afb50aafba12d9d243e52e. 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/QZMZ92128188.
Esta Es Mi Tierra - Teatro Municipal de Lima - En Vivo
Esta Es Mi Tierra - Teatro Municipal de Lima (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bdbd7a028d020fda624a54ed9a86487cce0da841d893d989b030812263b40e. 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/QZMZ92304127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59870855d05a589b8bdc4b19fcdbec3dfcf04c7a82521f6b765355feeffb0472. 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/QZW9L2323356.