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 0x4f3b1aa1be20a81f37360f78981e515550f8ef810c5bb4aaf5e79eaab01924c0. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb299b55-bf78-458d-b6c5-7ba07112f65a.json and https://artists.proofprofile.net/proofs/artist/fb299b55-bf78-458d-b6c5-7ba07112f65a.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 0x9b06f3b874a94052c1d8185be0f1019511995d1241d1a7da85db577a8e8a041d. 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/QZZ7N2432623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35351064d0a24837e4d7516333d913bf267ae2274c3aa417f3eb5505325d7249. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZPLS2406459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874abfbfa529adcb1405cae2bceaeacc930462da9666109aa1b08b5f367a4bb4. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZPLS2406460.
POP! THAT! POOLTOY! - Daedalus Dog Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f9eb727d6694d7e3c17916bb05c7c67107c027acf5d581555c5e0c0cb6dfe3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZPLS2406461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee09e732fe98e6a7c27ae29a318fa124f2539a14ee08704064bff52006c62ce. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZPLS2406462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe3aad1b23baa3b76ce46ba86ed3c81155dfd556438af5f5f8c2d7fd9f15e30. 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/QZPLS2406463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a5da8eaf0b84d0a04980b80e52a466df53cec2433ecd5868dc700be749135d. 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/QZPLS2406464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a12c36f5635fbb24edc7aad7c62b80609fe21f0d072d3d6e530ae19bcb07706. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/QZPLS2408778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb40ba00fd24de4c62dd7518e6c8216269589bbc4541d5d2f2fcee216dc26e5. 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/QZWFG2345008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8367f058362f41017f803c3fd7b2e1e2158206d52195091d9c93981ef6ec76fe. 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/QZNWU2385623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb628d7dce7c9045085acfc76a63346fed9818407c44f61f55420093bc84c2577. 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/QZNWU2385624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1142829c84e7612994d21150bfd140077f004c11a2440ca79c37f090c0e8f16c. 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/QZNWU2385625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe048fc03f00c9b115487b50a05d1efd0aedef2a982977c46ce383fc1f5dbb76e. 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/QZNWU2385626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5787ff82ce700cafa3dc3838522949a1ae7e8ce6a2fb5866aeaea2e780a7a0ee. 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/QZNWU2385627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284f42fb83abc7104ec00204583bcf3d46233ba7ba173e5d9dee273ab5c4d270. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZHN82141465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfa8c243ecf7c836ea24b2c94816ed18869ac0d946b58b9a510b78686073e01. 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/QZES82378151.
EDGE PLAY - theSpackster Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed2e86523a1918c5b9b44412790f38a0aa8eb6ff5119f01d1d3efde021d8752. 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/QZES82378152.