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 0x5cc0f5332e9308db8ea5a1e27096dd79f7a399b0110e6f97e7a9e3a5d79803c0. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/971e93e7-4b0e-4256-bb19-07be795b0dac.json and https://artists.proofprofile.net/proofs/artist/971e93e7-4b0e-4256-bb19-07be795b0dac.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 0x340832753ce39ae98be1ec386de0da7d99fd6248d8c3f37550803a4f5bca98df. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZES92066386.
Christmas in Quarantine or: CO-HO-HOVID-19
Won't Be Alone Tonight / Christmas Must Be Tonight
a prime target for anarchy (ECHO FINCH Remix)
Sabotage (Season 1 Original Podcast Soundtrack)
The Beginning Is the End of the Beginning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a20cd706f54ff6a52a6008b84b98e25eba7827e75699a3ff93b2f06d0df067. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZWFV2574438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47f24564c71c9761e8084fa5772cc35ff3875784e56e88b8fefc8abac7770c8. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZWFV2574439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c72629d6e7c6b446056238266142da18c01e8605ee39106b3f3de5749682aa7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZWFV2574440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443e1e2bd3bee1816a7ff2de8f485b050e06004e07210c417d54213ad15e76b4. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZWFV2574441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca41d5e68f8cb8cd44e96dd92106ecd93fe1330f958c7a34233c28c17c73ffd. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWFV2574442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8cd585fd89511b6d4376a75cedf45525f043d1f31828962fc02712e1e84065. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWFV2574443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb8f189cb5caf03ae04a6d121f5f2dc07b2a5472f868fbfa864e728dc4b6bd9. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZWFV2574444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e567ffa0fa947cc3944fdf6373258f4b321b63e66783d6ac42078c6d0ddbdae. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZWFV2574445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7a2c5db2264956a0340b96a39460fc26cb3f84f2f06ce5b78342cb8b9c4292. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZWFV2574446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a025c4bfb634234f5151c4c7e4614db0db157ef88963dc3538f115484b4f9d. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:56:03Z), 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/QZWFV2574447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c820106229b991dd43a7595b68f0f43fd92cc90f3037cc30beb45b6919f330. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:53:28Z), 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/QZWFV2574448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80496787d4d22d2c61d1a2c7bf3460e52ce5d8d57ae39abdf48fbe510f3a9e4. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:54:31Z), 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/QZWFV2574449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e9e8aa7a26d33de5e6b70c9927dc60a7e14c073820437ba9fe2a3a9e178ed6. 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/QZTAU2454365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a404b00a007e23d881b44c9290ba95ca6109f234d6d5811d4a1f3029967773. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QZDA72343901.
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