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 0x323dd171204c8aec79b6ec5ff957986824b288c3108022c1af7815d9c4bf3aa8. 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/09ae6fa9-15d9-4291-aa7a-99e1a45a81a6.json and https://artists.proofprofile.net/proofs/artist/09ae6fa9-15d9-4291-aa7a-99e1a45a81a6.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 0xdb5d1b1d9fa946de40f89c55321111376727bb9d60fcfc1dd02d84883cab0089. 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/USCNP1810807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456d994ecc47729ad60c797a0a43ab7557aa6becc27305a530b1cd8168c7fd81. 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/USCNP1810810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e2d44141827543c9f7042a875c46ae6329ae606d25f8b3cf7743f0313e9dc3. 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/ES71G1860302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf342c1af50f135b115bbbb936422f7332e15c1e3fb86027eb3a9685e3fc070db. 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/ES71G1860303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7dc77b02ea2e25c60807b6d39bd2620a544c3fd21520e1187fe7bc31d79e19. 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/ES71G1860304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094bbb2363ab46af050e320af290d61c0ae569c53e861d9ab11cf34ab6c05c52. 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/ES71G1860305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c335ed6c5550d2e0d29163f5f330721c315a57d3ef259ceebd2556b898a84c. 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/ES71G1860306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9018cf68828589d984c584883ec9c37b463c2740ef3815f6d105b733c14a5821. 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/ES71G1860307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a09ae6123c7cdf96dec4a6ee1ad85472e9cd849e341bcbef6bf6680dc75cb8. 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/ES71G1860308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87772e6a05774a1eaf483c77a981504c9e92667ba4b56ec21b2c053fc742f14d. 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/ES71G1860309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b3e506b07a3854a9d416e25eecaab00429078cacbf59bcebf2a1fed847e877. 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/ES71G1860310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d94be5883b378ceb8240a506477af1f104190dd0999de542e8254cc0d7791d. 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/ES71G1860311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06d16c871bf2947c60b66170fd35429981e956510e63f08f2d424be822967ea. 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/ES71G1860312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf438fb576ddd8f692aaae2ce0f01d4f4c1f67600d15aa164d1ebf6cd73afe750. 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/ES71G1860313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebd270111d7031a67a7eed12a4744bb09a710d38985a3c27e80697d9a890d97. 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/ES71G1860314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37a215df863904d51f563263390a58031581f4a2d36f66732d89458c0311e34. 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/ES71G1860315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a09ae6123c7cdf96dec4a6ee1ad85472e9cd849e341bcbef6bf6680dc75cb8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G1860308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8107397f0c10793baa64015961ef8b7493c1e7cf1e72a90c1a2adf2f69725f1f. 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/ES71G2063830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8107397f0c10793baa64015961ef8b7493c1e7cf1e72a90c1a2adf2f69725f1f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ES71G2063830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b77098a53c87caae7fc6c7122297cdf90cf9e74994c4752f1abdeb8767d756f. 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/ES71G2201305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8107397f0c10793baa64015961ef8b7493c1e7cf1e72a90c1a2adf2f69725f1f. 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/ES71G2063830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5a8287cedfe1d86fedfd23f257acac194026c4f9b5a7ccaae24266fa52d7a7. 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/ES71G2201304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f437461b4c437ab5f12ef5ddddd077b189d656c2727b18650d719d5dae3fcb. 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/ES71G2201306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee287debf24d5999cb0d651cc9b701a50e3f6e9ba503b314c2401eca0300d340. 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/ES71G2201308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a730420be6ebe419bb38e1d3d4b5c7cef50bb15210434b631e335d8343abcb5. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/ES71G2035084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec2e0b2fdecee5571ea2257b431be8faa03f79fb371555fff095514432c09fc. 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/ES71G2044370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61199963c07cabffba49f6461135189546eef489b0ae7ea5d1329036e2f963d8. 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/ES71G2318641.
Sabor a Mi (En Vivo Desde Ciudad de México)
Sabor a Mi - En Vivo Desde Ciudad de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2691232d57c0bbe1f94dff9262840ff3878a1a0b6a5d25983bd494818a1428d6. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ES71G2420497.
Sabor a mi (En Vivo desde Ciudad de México)
Dios no lo quiera (En Vivo desde Ciudad de México)
Dios No Lo Quiera (En Vivo Desde Ciudad de México)
Dios No Lo Quiera - En Vivo Desde Ciudad de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24c67f6b6b2a7cc174513a55affd4820044417341017c0a410c5da83747f989. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/ES71G2423364.
Déjalos (En Vivo desde Ciudad de México)
Déjalos (En Vivo Desde Ciudad de México)
Déjalos - En Vivo Desde Ciudad de México
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274eb54103cec7ce0081d311b7aeb5173a71c23e2fca48194750086770e99ecb. 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/ES71G2429329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4711b60c47eed96588d27844b2ff961c88c3c9d781527df77c979af2c4d3cd24. 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/QM6P42412126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c35066ddfe888cdad870b4adc60f85494ea02e1e728e63c9a1a485a3e01a9c0. 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/ARY4P1900412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be2631d0469f8c34072b0d5b18c0992745e19de7af74c667395aa8a02f5cefb. 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/QZGLS2010414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd9cc8fa1d4583c8400f425fb1bc8a490600e3ecac64a4dd68b4794ff3722b1. 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/TCAFA2077447.