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 0xa824488fa4be9d2e07be4132120d47ec0761c3bb9e7322bfbca72aa324e98655. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb0e565e-39be-4ad3-936b-b949ec0e1874.json and https://artists.proofprofile.net/proofs/artist/bb0e565e-39be-4ad3-936b-b949ec0e1874.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 0x05fc978057ab3d6ad503c3b5c7e1799e7835bb2f75cef856e35d5195b3aee511. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/MYSW10890204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae0b6cdbc77a6931bace56d8f0ae7ca0875fa0ac24eb84740f822dd80d16074. 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/MYSW10890189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873edf19ba2adb283b1f7a19c83bfd6045366e53d5aba045e286b599abf3171b. 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/MYSW10890187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0d1a21c521c26565f5e307c82976ef3a954822ecc686b558f099ec176a997d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/MYSW10890383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c29a3fc310f020cad330956ed6909b0be3143a151bb0b8f6290dcb54bd2b229. 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/MYSW10890104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c07398eb4deac1c01ef51bd6f5da5fc2f3a858f9586ad943171313a6b1feff. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/MYSW10890105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf627dad7e9f9e4c6b57209b55ce5aa1aa0215e951576a1c969ccdd958c35cbc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MYSW10890109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6794811693f5d2773d8403cf2f7932855d416f96cee6ea6696bf0418526f50. 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/MYSW10890144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebf2fc61084b8db628d89442573eb07c63db7a6f342b52d87ad0409a56e1f5e. 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/MYSW10890106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8db92b46116df277dbaf08ba1ac58b3bc4132741be8967a1d97673bbc9ca15. 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/MYSW10890185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265670a861d2f349c829b3ae2d3eded28a027335f5ac7d27b194b59142a28869. 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/MYSW10890356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86a98e8471e6e6ec6bc0137dabb13295f0fb9883af8c27840b72437fd118a0d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/MYSW10890180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee875dbe5a9b33ec6e278e1088454572e5177f2db6cd74c196607ce371a972a. 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/MYSW10890182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873edf19ba2adb283b1f7a19c83bfd6045366e53d5aba045e286b599abf3171b. 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/MYSW10890187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae0b6cdbc77a6931bace56d8f0ae7ca0875fa0ac24eb84740f822dd80d16074. 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/MYSW10890189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd18e25164f289d6b178a7d9069d8dfa071e967c83abe4589d56702b18b340fe. 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/MYSW10890190.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e6ced2ef733008a98d463ad839292d7709aa43561ecc36c2a8a033aecdbc55. 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/MYSW10891916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae0b6cdbc77a6931bace56d8f0ae7ca0875fa0ac24eb84740f822dd80d16074. 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/MYSW10890189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7741481be0794cdc2473de3c65be5db1812259f918ba08ebf600a93997195fd. 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/MYSW10890447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f87534a3e922e40b3cf8ae65cd1bca5adc1c3f4c4702d425bbc93381c173622. 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/MYSW10891154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ba32662c6e56a2ec8fe5b15d93f72843d6eb0be6fe1ed9f3fda0f73d773b86. 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/MYSW10890258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbf45a3ed8a55aa3a644a06a7cdaf5ab4dad14114b4296b5cca5b411c80dd69. 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/MYSW10890250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fc978057ab3d6ad503c3b5c7e1799e7835bb2f75cef856e35d5195b3aee511. 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/MYSW10890204.