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 0x278ac85b3783f0f9f541d4cc93c7c7d80641919a3d5c396dd46294f6ed92237a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/960b2c78-54ed-4f59-8a84-c08a4d16bbcd.json and https://artists.proofprofile.net/proofs/artist/960b2c78-54ed-4f59-8a84-c08a4d16bbcd.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 0xc6a6766e9b163dd8d181b40e0b20155676ce61643138e41bde40dc82f2680bb1. 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/QZ5AB1898615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457e323f2f62f292da0b744200df8019635756f0912f81102c30fd93858c8284. 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/QZ5AB1898616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7963da9a49c4e5a19181ed3faa97b3231f2f5bee16dc08ccbcd65abd5b75199c. 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/QZ5AB1898618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a028d3a6d4acb751ea60fde4fc733286570ca094b9a764e1b5a924b0b7a0d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ5AB1898619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77843da0f2bdc96b71fd451a6b4a9ef7c38d38baccc8e2b91fd21cfa7b2c581b. 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/QZ5AB1898620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991fc12050ca8e83456935e113e187b0c5c20fa28096b5f1221e1389f8dce8b2. 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/QZ5AB1898621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b562a07b454b93a9fdd45b2de45d00f3dd20792164f6ed4357d22540c3823ba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM24S1921674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9a756989edcf327424c544ef7cb94df57ba6e35356cb68a29953af1d61117e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM24S1924852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaad282033bf253c9c026d1477074e3101d8b3773ac3b48260ebfef923a0a08. 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/QM24S2006822.
Today, The Sunrise Looks Like It Can Hold Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70db8b59ddc53665bfa7fd55ff62850e89499ac5e37730a9aefd394c0b69d551. 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/QM24S2105138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b60878b864d6fb59035e949467e424bd78e873347071843321a8a9302c4224. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2106212.
summer fades away (From Somewhere Quiet Rework)
you will always be my mountain (solo piano version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44415765336edb0c031a1e2ef840a7389c70920243b716ac9b826b59b618b7b. 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/QM24S2306602.
I SAW FOUR TET AT THE HEALTH FOOD STORE!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f7145ce82783c575fda512635de44dfce4edfc604c068bc4e1314d8665a191. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S2405003.