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 0x995dae7e78c46875b499c04cb752854509dbc2e79ce1de11728ac4dccc0d8cc8. 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/c1921749-f2f8-4653-9a4d-c355d5ca269f.json and https://artists.proofprofile.net/proofs/artist/c1921749-f2f8-4653-9a4d-c355d5ca269f.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 0x97e89f4fa9d4e8d3849cfe50a5fffd7a42ea3f4f58b6801e689e31d571603b2e. 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/NO13Q2122011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f53e686b9c660eaeb01827f613d760a34e319a9e485710e281e628db935926. 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/NO13Q2202020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ae519fe34333da440c5c487bcdafbfe37147695d2c2b754dcafc5259b79a88. 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/CAN112000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311460a800d0b772c2f8b65534003a6b155687d53f42aa315f20689f39a521cd. 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/CAN112000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26e0c730f73aa941264a7d02e53c42438c13980b6202d7183465dc408d514a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAN111900391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe915687d8209237bde7eae4d2a4cd283814c9ee2dd4daa591951caca7c43c73d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CAN112000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9b39dc165f7e9fb912e41350dc6067a5adec2df043fe2e168b080260b86adc5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NO13Q1606011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7dca948bf3ffa8a6c03c1c4e441c7f7707fa073000567a403bb38880be5d86. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAN111700607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723302dfbac60145fb59e3502f8da2bec442df237a2d55c2e9141c5c2361f272. 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/CAN111700175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e13565de880ba6e0f580c43eaff10a5483b19224b375c6fd170ce26c7da49c0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAN111700582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566516fd45b07aa336dae7ca526db15a839c2acbf03fd5c0eb2bca5078e96055. 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/CAN111700608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dbf3fddeb752b7b9439b031e1c47256e46957acca7f57c7836e7613a2b9ac4. 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/CAN111700609.
Mountains and Molehills (Acoustic Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a826b07f7572a9ff7baac2cc3a683fe40affc09600dba83021add3f9796039d. 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/NO13Q2302045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa435d8146acd1057abe99b9c075a3cfa27313fcaee51f4df23e1ea043c4b84c2. 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/CAN112000442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a032fbbc55672a15c5161349f642387dd2813ab89b059b43e29c9d53de5ed5. 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/QZ8GX1700725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e661f2e955647df8332885c7bfa494790cd935aba662221b73bc9a3ee1f37b6. 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/CAN112000497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab071ffe8bc21bbbdb5ba390e79968b5b2bb0ff46b754fd31e794c69263cc4a0. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SEYDQ2002601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f8f548bbdf2f3929db04826a2c33b14814909669604db164aed7e409d68a4c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZ8GX1700914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea1924a5322b08c80c894068bf9db387545dc3487199faed7eff7318039b8d1. 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/CAN112000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe915687d8209237bde7eae4d2a4cd283814c9ee2dd4daa591951caca7c43c73d. 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/CAN112000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a5147619ee9afa027211548ee6927e651b38f3e083d7c72a87c48fbcfdba99. 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/CAENV2015315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebe60f6642e8fb1620f8159826e19fddf6d81b94cb96093292bd94b4488a1a7. 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/QZK6Q2076456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96efed4781a888f9ba849ad9c12fc8b5df0d51e3cd457c1e4bb7e4356322d754. 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/FR9W11928403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aa2fde8052d3dd3eb239a631d619806dbe604ae53e74a250a8e67c6e8fe986. 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/QZDA72025272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846172febe14eb821257c561512595760a7d1a6cff2091bcbd4a0007bb15308a. 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/USCGH2127454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab8b840b80b8e0efceca43f1746eec7823e37573378dc5a516d4f64004c133d. 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/USCGH2127482.
New Indie Folk; January 2022 (Indie Folk Central)
New Indie Folk; April 2022, Vol. 1 (Indie Folk Central)