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 0xa40b93a52eacdf1e3a9b5ccf8e26a53f883d9fd2a9928c69d8b1b874c2647a0b. 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/a257f61e-28ef-4574-8471-9ed67d42672c.json and https://artists.proofprofile.net/proofs/artist/a257f61e-28ef-4574-8471-9ed67d42672c.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 0xa5b3bf8393b4423491f230d38e0f923f3f5ec806fa5bd32f8f1af92c04aecd77. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GB7QY1000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8f367b83de39311be26f48a35312e09cff1402cac05b1105bea574c8d16be8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB7QY1000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe035c0733f419e181f3f1f25a0b0217e5089bc01965ccb0325d6719008fbf4. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GB7QY1000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30844272f547d2eab9ae2decee4ec750dce257a12f1aec7729c84527e85b7652. 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/GB7QY1000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865d2672b93db76857caf4b988f0b75bce1e0703a65a80eca134f1c6cdc07e54. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB8KE1957440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965d2f402dd6111406ea4da3bde3bf0c0b65d048af0e61b3ad935d715e648482. 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/GB8KE1957441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32945e37dfbd7023c3a689c14f502bf4aab9c7e3424a501d385614969607318. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:41:42Z), 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/GB8KE1957442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04aab79f1a11202371451e34307609b8bdc3f827e1c09079a8fb88fc2936654. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GB8KE1957443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52b3925a1cdaefd2fb9bfa5c2e320a030fd798fbb09d4900434760ac5eaea7a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB8KE1957444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c1f62f8e255fea29905a6f3d4c9b49e557732f0013098c5ea72e1393d33524. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:51:17Z), 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/GB8KE1957447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55850edfaa64c653e86f7452dd3e8abeb30109bc07e15c70531fc61b4b72ba31. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:08:45Z), 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/GB8KE1957448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b809aaa39d7fce6288e23257e037a6ef33849781180a7b737ace83dede28ce. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GB8KE1957452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a6e6e19f8ef34188bbf3961c170ddcbfc94e5ee2255b2e06d9df5a15c60b58. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB8KE1957453.
Twilight of the Gods - No Skinnyman Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee00bd5638808918a17abde5650c745fb9dfa117253bd893dea789efd8f04dcf. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:07:04Z), 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/GB8KE1957454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7595035d79f501eaa6bf93f960b71f8eca75e9e365b9d222f86e83f337811b12. 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/GB8KE2315644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3fa66a4f42660490d6590d31619359179d3de46a09a6167b65aca00145f85f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GB8KE2315645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb57752206f4abcdc0a87a09dff60fc8937ae7410d0947cf78cd375f281c07c2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GB8KE2404552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ef6a3f5123319b65a68bab34b1b35a44b0f398f73674c924ebca8bc7025a33. 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/GB8KE2412572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa8816750ea3c1d88189d456b5828351f748ed06f9466ee4c2ae5d990b35760. 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/GB8KE2412573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc65d1df5cb7a596b96b5f3cd10fad1609223d3a09e7a21321ff7d37ab9ae82. 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/GB8KE2412575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534871d253a30b252b4b0306e45a8d9785a9a9ef850bdb2d3dc33edbfe973a1b. 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/GB8KE2412577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb43bdd59efbcf66254ad97ece6881a90648b8e16ae4349b67f4126d9d6e2f8. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GB8KE2412574.
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 0xa309821686386e4322f0dfe505a9488e0707607f098bb951760f6ca56bd0c217. 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/GB8KE2412576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b63eaf108e3580a83b18fb9424f1aca9f4a6138f9169af60fa85c1c732202b5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GB8KE2412578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba61c4e7d4c0ef94472f80b3e169c8355228f6d6b9fad4edd9f50c1afbd462be. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GB8KE2412579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693dc2d037013d771370097c0a269ee261a900aa3ac31edb07425a7e85d2cf0e. 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/NO2DY2300596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8bc5857b13ca96552200f4dffea6d965eba4e9bcfbd8aa3df9bc687fa3e5e8f. 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/GBFG91512484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d36e3712e965f15ef3293b528c96cc7f540ee92267314516307e33a5442e541. 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/GB8KE1354844.