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 0x6136259287d015efd15b9f1e7936adca52dea90ef16018c7f1232c0fc1a545e2. 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/621c9ba4-6924-451d-8838-d4bf1e7ec92b.json and https://artists.proofprofile.net/proofs/artist/621c9ba4-6924-451d-8838-d4bf1e7ec92b.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 0xb9d49dbbdc14cd3899d433a9466ff7005c627433b0b813778f6ad4fda8f1a749. 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/GBKPL1254821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1ed0d8ed1f1b29bece8ed4d949d47efcbbc86d8942a07dd3d4be2eed82bf06. 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/GBKPL1259739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d1dee328ddc02c03f043ab3a21382e248e82250e43f80dc9510e52cc0a3423. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:46:46Z), 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/GBUM71301877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e8c647948cb982683cd2f6b9dff235875de81f6eae42c228b901409d52173f. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBUM71308312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a129750c37e62f809c27fa75f53c8102bd7a9796e63b403566d2bd6c34379c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBUM71301906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906c7ef74502b693441ed5ba6d316c4c34d60c552336a1da334e651e0e3e3c93. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/GBUM71301896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d30ed93e96c78a28fa9fc36546a645fa53d38f5a36915f93afd2231183cfa0. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/GBUM71301895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844500da411aa05caf9a6af9f572fbd070598f846ecfd89a252f608ecac26c01. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBUM71301900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8565478277d463cef14adbcf55bc9d397b8106d4bdb49415787664c5618285. 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/GBUM71301909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd660c281c2b7bbfae842221e2826d3573a3e4aef5b3a0ae4ce78d0372b60b1. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:45Z), 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/GBUM71301899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cdd8fd947a01660a36017b6cdd1365f63534b434aa9493deecc32e1944429b. 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/GBUM71301894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d403a849f781e1133c7a358f9521bff461310b264174c3c3df4650b0075159. 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/DEP081500023.
Funk n' Beats, Vol. 5 (Mixed by The Allergies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee1a472461dfd245456c2dd23af4991526a87df763d04ef55a925b02991e5cb. 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/GBRGV1850913.
fabric presents Chase & Status RTRN II FABRIC (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348b7d693e0228c7e68d15e8bb8af60a22e6e4dd48b94cc72cbe9827bf312735. 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/GBUM72003930.