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 0xc831fa933cd72b94b8424ecb1c56191d222b8f800c823f368dc519da7af6c403. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17e24f5a-fb3c-4d4f-83ea-37eed7468e23.json and https://artists.proofprofile.net/proofs/artist/17e24f5a-fb3c-4d4f-83ea-37eed7468e23.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 0x84864683d788ec4ff3bf0bcd4c1f64f3bca8b4645afaeed482fd12dc477e2284. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:28Z), 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/GBMEF2402528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496ab4c47bb76026514d728afd60b0602fe1be58c2f7f97528910a7df11bfe58. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBMEF2402525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa521e1e05f2b2b10d4ea206fc5ce3ad63a0825fe335328b066c0f7dbc5090f50. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBMEF2402526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe380de047f8f94bb4cabef6c876d0c3637ff971cf31e86e375c8d826cbe64d5c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBMEF2402527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdd3852dd5e40743be94e5f7867a980052a29478e065520bcd4c88cfde5d147. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBMEF2402530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262f16308f18aa5992b5af06c47b0340a8502a54b4656bc0d50f5a4866ef75a5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBMEF2402531.
care to care (feat. Plumm) - Oliver Palfreyman rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5945f4cbb5c1fa4d5726957323666540cd6da19b8fedfe7d0f342d187b57e135. 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/GBMEF2502667.
until tomorrow continues (Kibir La Amlak rework)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1426850db4d9a3ea9d2b4393674cd173664bce11aade2475278022804c01f877. 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/GB5P52300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb128c3dbc74a33310844d32e741a6f1270d6502a6e97d24e56ba14416af1ae32. 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/GBBTF2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae43ba4d440b81269cecff92259ff77e2572e5634bc24ca7df328bf2e8eea24c. 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/GBBTF2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae43ba4d440b81269cecff92259ff77e2572e5634bc24ca7df328bf2e8eea24c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBBTF2400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb128c3dbc74a33310844d32e741a6f1270d6502a6e97d24e56ba14416af1ae32. 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/GBBTF2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb128c3dbc74a33310844d32e741a6f1270d6502a6e97d24e56ba14416af1ae32. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBBTF2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a28135836a0031b197e141e3c422d24e0d9fd6f00bad5aee84e4a6c7f52128b. 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/DEG932401961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a28135836a0031b197e141e3c422d24e0d9fd6f00bad5aee84e4a6c7f52128b. 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/DEG932401961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c3cc107804a61da186bd666ca4718ba6ffa6dc1517c32b64018c4667a9b025. 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/GX3Q92409395.
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 0x3067a8fb89eb60ab34fedf04f33694f171acc164b9dbffee09643790fbdc5329. 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/GX3Q92409399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1ed2b95bd9bb9d030a8596fd5a10c9ad1f819810c686861de028a8506ca564. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/UKXN22296102.