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 0xe10ee6351e1187c584c969415fccb6b9f8c6fec2c5487a9fc6e00bea4ff76ebf. 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/c279bd3b-ffe2-4fc0-be1d-390a15ca4c3e.json and https://artists.proofprofile.net/proofs/artist/c279bd3b-ffe2-4fc0-be1d-390a15ca4c3e.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 0x8add5cbd9de70f888fafcaddb3811b5cfc84aaa7d6d4d0bf2e000589c8b5348f. 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/ESAAI0256491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b0cf851a425712b3c0c0d85e8d722529f0c30f7502aea255bec8545f7fe282. 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/ESAAI0256492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b52c6a47ff85198376fecef1b3d5e8ee5dfad354858fe1a05cec3f0f3d12b3. 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/ESAAI0256493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524b48dc4955af7aaf4e30aa6bd8d5d6bd01f05b30fc03016901c7366f83c94c. 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/ESAAI0256494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcdde6c21fdbb35d7c6c625fdbcf8bed9133ce35b6e7e39e737bd0a40fe2714. 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/ESAAI0256495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03544c1c6f8049d73018f07cdfde586edca09f5f9eda2a7562916f7366680c7. 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/ESAAI0256496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38089a26ece2d7e5391d3610628a117190e737c0fdb2f3c3ae9eca4a5b81d9ca. 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/ESAAI0256497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea0dd0252199c88719a44c9da485edb85ff04b70b63a02382c6761134582adf. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ESAAI0256498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4698fa670fbecd887d824f6ec388816d1b4725eb54d71389817e23e26ada6eb. 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/ESAAI0256499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0f4b6d47bc1ab49a629727f5bb1c7b50ac027b3fabbd21a83b8c3a0df366d0. 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/ESAAI0256500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f83255c41ff3ac7ed243a7d568444903d56ffb5caaf8c985f0b11518ec5f34. 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/ESAAI0256501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e47b3436f8071157563d4e3ac11ec673ab704367f99c761845374a51f52dc8. 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/ESAAI0256502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52edeb46c9f70ac09f3ca43d8bd25960b2126a1256b740cfac16a92eb9bc5a2a. 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/ESAAI0256503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e3a7d3443f9444afbeed3365562505ef953e315a014bdb2ad0d78b1ba6b23d. 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/ESAAI0256504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706c2199903cd23eefb9af6d1334bd456fe9c47988c165a7c6bab9a69e56c96b. 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/ESAAI0256506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecff5436946c00d329a34c243db338e937943a615c17eac4b2cb60fb4ede1e56. 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/ESAAI0256507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41cd04357bad8b9d1f4dec3034aae0f1f01a1310453766e3a2a1ee2089dd6f2. 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/ESAAI0256509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d4181ec72f20f4383f92daa1a729ae504792278aaacc44a802a2a5ae918715. 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/ESAAI0256510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bb7d505e7fea8a7d1e10603f116cf40045d4aa022f38c231c6248e7dd8c515. 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/ESAAI0256511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27dee85d94f08ea16ff122c5ec7d9dab39ee09962bd95f0d91b12c911f90b4b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESAAI0259053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d06305d90b699fad00f3b7b887b3da0345b6d946b4d18ee60264601eb2add7. 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/ESAAI0259065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00ef2abe0e70969ec260d3f60268d1ae62b1a5f9df8937322a76b9b6316d91d. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ESAAI0259017.
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 0x4fce309dfb721bc631292efac49cca1b2a3522cb6c663b7dc8bdc634f75ed773. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ESAAI0259047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9686d96772fc5247ff40b47908f8f9a6ff0d40f593a83dd396b69db0dea4d5. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ESAAI0259048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47055da3458ec83ca96df274fcd4a4ff8a072e6fa73cd3051cfdc30a6273730b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ESAAI0259049.
Yo Tiro Pa' Donde Estoy Güelto - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83616e66221b38be409d2934b3dda2e902ab1af6f43c6a4046f468657942a633. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ESAAI0259057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff419eb6c22dbfe4f6ea4eeb2d5318afdabd74eaf5061e0bc36661bfae5eb0de. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/ESAAI0259058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b5b8fa4bd3096838e22ae7ab5306a42c03b755aef277bdc0ef0eed13805d7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ESAAI0259059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127568a81944583ebac42d94d7b2e753e4b77f3bd97f00c1fc6c4ac89d21522d. 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/ESAAI0258922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdfcc00a739015194e1451602ac8bc18782b7331aec7b2ef1c4e9f83239b63ca. 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/ESAAI0258924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810f04fef15e858fbe49fca302c184a37e78dc8a4fc2e320c1ed85e80b783a7f. 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/ESAAI0258925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613864ebda1a237e05fcbc98b52d4f81b4fa8a120d0f2a1e287ff618c657c02c. 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/ESAAI0258928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af10b163b6f2c599c6fc30adbd0473aecf9f43742314882b3d09a1fab3fab40. 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/ESAAI0258929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b0b78cd3f9b00d04ac95e0618b2c8030a07dc6fef6e60c0e3a8d6edf01c078. 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/ESAAI0258931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dd53676c6843b157d0f0a432b21bfbce9db92ff76d2ea28b44a4be5d29eeb4. 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/ESAAI0258932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab6b19be3167a47b0d683b003f3513ba927c2e88817c591d173c6b1fe4c3d68. 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/ESAAI0258935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb080def43014d0853d03b16f4bec1901aec969539843f5110d9855c91355d8. 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/ESAAI0258936.