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 0x95481b99cb42b2f29cbecc98e16bd10a19c120827464ac5434414ef30ce1dc29. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb4ad131-cae3-4bde-8939-b043f0f3143f.json and https://artists.proofprofile.net/proofs/artist/cb4ad131-cae3-4bde-8939-b043f0f3143f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dreaming of the Soundtrack of Once Upon a Time
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 0xccfdf8897bd80de3e7fcbddd1ea578a7235a6f5789597f45c985aa1148129650. 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/DEAR42281960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704e15ab24f2eccb9b5c52492c18d3e8487397dc70c4302a475c8c56a096f98b. 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/DEAR42261840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49860c8c1f0e766d0266b09d96a9257593063d54a2ab7a7a163fcc686989e311. 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/DEAR42269741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7508bc0095589cd8cee6badc7d4e6ba9ff67020b3b0d904f318a444a00d8c77a. 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/DEAR42264137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f5e5f35c0203e92b09d79d0252b3b438b6daa15a68c17762d635cea81ea5d4. 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/DEAR42272779.
Love and Money Stay Together Very Seldom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fdc4f270ef32d533eef89b75fe54ece6884779f27f31c69b539b407d544a27. 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/DEAR42287710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf005a42861300b7f7bd1183f05e2500b402e3def3a4474e0fd1cfea3a2383e4. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEAR42212730.
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
Lone Home This Is the Hardest Time of My Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2deb2a7fefe4aca043c56ce4de937d5a0dfda1219ecfdd5373f25164d2f7ca2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAR42224072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30162c92bbb3e574e9834c3b46390a5ddd4a270a27bc147cf8b1ce6b1c3b759. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAR42271082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca181f010d4d7f2a5d15a0076eedea7282fa1438e73258629ac3108156ddd0d. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEAR42278962.
Having Humanity Does Not Mean Being Ridiculous
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5d15809c3656b09e2e480f2d684f005b477f56f65246f620b233dac414fb58. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEAR42263410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f10e50a08a16a3662a3d477950ae5d4bda8b59a9284710262540168f83b745. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEAR42223851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31728648a4229f35b27bc922bc1e2e01770f1bf81ea7a511229d0c838fc04201. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEAR42288441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98fba4587accc14f3c6a3bd278975a4d15fa8e3ae5134be8a2b7f35517b64920. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEAR42275566.