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 0xe01c89b38ae26cbeb99fe44c8a684ad8cda6fc8d2f3b0c6c58348e8eb6f13f13. 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/b2c91a1d-40db-45fa-a6a7-f6a44572212f.json and https://artists.proofprofile.net/proofs/artist/b2c91a1d-40db-45fa-a6a7-f6a44572212f.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 0x60e807c9ec89c1a95e37a64863690308f943dd9402d6d6fd9e729fa996a645be. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US39N1767752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaea1b8860a3e378d44d90005abb0e3dc687bba0fbca2c94b39f34e3efb2dbc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US39N1767753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d081aef48b57d4bd6237bb6cd0719fdc0557589e645aa8c286e8f77fbbb37d. 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/US39N1767755.
(Sittin' On) The Dock of the Bay (feat. Otis Redding)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36977861c2ec2d4b264dadcc4ccc698490516e6db194cc2bf393a2580fe71a66. 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/US39N1767756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185a71e9ec9177a1ef6443870b9deb2b5e043645935a74ec8e71a7e2c3507744. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US39N1767757.
Say a Little Prayer (feat. Dionne Warwick)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d716ab415e9e1311b4d87bc4b122aceddff0deb4ff029c647df584e1f85652c. 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/US39N1767759.
Airplanes (feat. B.o.B. & Hayley Williams)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa360db838dfe46560f36142b328a5b1df27aa5c89c17c0cce6ddf0e9bcc545ed. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US39N1767760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62de0b35ad0bf2bd17d2f3a18b1c9fdd14f4af6658f32983ff6d5632c09db2d. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:59:31Z), 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/US39N1767761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2431498fb8a522206d059fa719a3d99357d3f7a13bcb3003b58d5f990eb8bf5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US39N1767762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496129984a97fc8bb8dc0d0ed9e2a6d9cd1161cfd1787f0f75cb01af70affb48. 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/US39N1767751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaea1b8860a3e378d44d90005abb0e3dc687bba0fbca2c94b39f34e3efb2dbc. 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/US39N1767753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322f4ac94f17eea0e72c0ba32d03addd300148cc832ba28a16cdc20dd190a91a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US39N1767754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30d5dd0e5ea2453295a6a3dddd96cc96ebcdc0ba89d40d32d1ac368e67ad8ef. 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/US39N1767758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36977861c2ec2d4b264dadcc4ccc698490516e6db194cc2bf393a2580fe71a66. 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/US39N1767756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d716ab415e9e1311b4d87bc4b122aceddff0deb4ff029c647df584e1f85652c. 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/US39N1767759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa360db838dfe46560f36142b328a5b1df27aa5c89c17c0cce6ddf0e9bcc545ed. 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/US39N1767760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2431498fb8a522206d059fa719a3d99357d3f7a13bcb3003b58d5f990eb8bf5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:06:23Z), 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/US39N1767762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bec4d27a561bacc7dc92869b3af12535aae3583702b2894d783366e1a4d8733. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US39N1767763.
Major Lazer Presents: Give Me Future (Music From & Inspired by the Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc5811485bd05134d72753c987c456f63da95a7e88653da307f94138a5a1c38. 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/QMUY41700283.