Refuge is a place or state of safety. It may also refer to a more specific meaning: Safety Area of refuge, a location in a building that may be used by occupants in the event of a fire Bunker, a d
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 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 0x45c49bc3149a1760799585a6e93a4ca4eb33f9076ef1c414d93ca55c8f583c70. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2944a7e-39f7-4468-a0f9-b4357fdda376.json and https://artists.proofprofile.net/proofs/artist/e2944a7e-39f7-4468-a0f9-b4357fdda376.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 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 0x9b0c1ff20faa7c7f3880fb8b806369d530dc6b04aba6ad7e9ce6c4e51cfbb48a. 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/FR5LE2105501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0c1ff20faa7c7f3880fb8b806369d530dc6b04aba6ad7e9ce6c4e51cfbb48a. 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/FR5LE2105501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ba16fdde352d1b4b008256c06fc37769c6e4ef73e63c8d94e83db0b1ef3a9d. 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/FR5LE2105502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed866d4ce18f2e29df83d8678d9a900552bf2f51e4020f287e9b6ce9e8a6b11. 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/FR5LE2105503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcad76e27b9e5df3923bca7b645cd116733bcb9b33af1cce9328de46328ddf1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR5LE2105504.
The World Outside - Outdoor Tape - Afterlife
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c1fbc97152e780be74dd148e4da400e25793fac218227639dc67c551884fad. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/FR5LE2105505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0c1ff20faa7c7f3880fb8b806369d530dc6b04aba6ad7e9ce6c4e51cfbb48a. 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/FR5LE2105501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcad76e27b9e5df3923bca7b645cd116733bcb9b33af1cce9328de46328ddf1. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FR5LE2105504.