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 0x56aaada99acf81c5c29a54f002a1eefaceb5441caf4088322652bb40801f1555. 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/c78c3da5-6fa7-4b5f-af10-9e350c82cd88.json and https://artists.proofprofile.net/proofs/artist/c78c3da5-6fa7-4b5f-af10-9e350c82cd88.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 0xf4150ccac66128d1a48137d82ead01d3262ade133767050e56cbae20343861a9. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:40Z), 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/MXA0N2400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633b1dd4cf7d6db11ce5e867c91aeb606e4d0eb9fd2619404842f87dfea39129. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/MXA0N2400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09524107eea2ffadbf5e0df2fbffd03d8a0ecce8edf977769e3eb174f214d530. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXA0N2400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e2280622ef50061150b60615cd52bae0b8c849321b1c6bf8385caed062c711. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/QMDA71303390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a2ce33047d198dcfc347dbb179e0d2f7f07991ab79099d0402bd760e3c9933. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:08:18Z), 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/QM4TX1884972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd32d4744233304fc438122164f5e2523f3cd5696c65def40c5a3dc2026bcab. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM7281544662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa5b6ec84fca1b79f37ffb07669a39d5dfcf25906e277bf01b7a61fd3871ed4. 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/QM7281544669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb129c4b1501fe11471ab55457c0847f814a2b71da610c36f20e9a4e5e3e4ba9b. 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/QM7281544670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a695828a84bec6ca0e9aadd4e0832abcf33cee0579b0b3e1c8717769eb42cb6. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QM7281544671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5914de9e43c8e39f7c2d5f9825e80b53eaf6d6682f8954e7b85e675f6c5d4d. 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/QM7281544672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aef44088f5af10fb07e5a09bd73fff8416a0b10b3c589b7a98ebc739b392f10. 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/QM7281544674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd5f6caaa323ad5d78d947a66a02040e6623bc86a6bf3bfbd9d6cbbe4643e18. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ARHXW2203359.
Los Rockin' Devils : 15 Exitos (15 Éxitos)
Los Auténticos Éxitos De: Los Rockin' Devils
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b1467c30baa41bfc9cd4d51aa4a34071ebdac2aed6e2c25dcc09e91ad4ce49. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/MXF550803696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0212b350764c9426eac3630c2897dd8a326f0d512c98dffdb615a7ca9e0fd2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/MXF550803695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09bf5f6d153b0295061bc7f8947f4e58aa0fb0672a002fb346b0a2fde583f61. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:55:43Z), 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/MXF550803704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23ef8ea7945edc8a35291ebc22e9c8511b7a720973e35b605bd43d9f9c45fde. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM6DC1737695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf965bad903e705ac6c1d74449922de7b7907323ca0a903f3d2ab4745b2ea3431. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:24:34Z), 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/QM6DC1737706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a2ce33047d198dcfc347dbb179e0d2f7f07991ab79099d0402bd760e3c9933. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QM4TX1884972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ce098c21c688d559ee9968292ab16977d6fc7ee31ee8a24180468d4d2c552a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXF552011147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09524107eea2ffadbf5e0df2fbffd03d8a0ecce8edf977769e3eb174f214d530. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXA0N2400225.