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 0xc1bb4140e9f1a47a206c2ce2f8c9df9be8130d3be785b4f056285141f20a3fa9. 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/0a1f50c0-1b80-4f46-bfde-ede8df59d367.json and https://artists.proofprofile.net/proofs/artist/0a1f50c0-1b80-4f46-bfde-ede8df59d367.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rec Room Volume 3 (Original Game Soundtrack)
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 0xc8ee04c0ff324d14e2e6962032b687e1c1678a9e8a69441fff913e92d8d9ac5a. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZES82174255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dada582a26c45fcf0de378db065d09e2172e76a6b35a8c2a5495cf57ab8b8f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZES82174256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218cf508f0759eaa1602518485e951062594873c7beb55863aca836a14ab955c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES82174257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd84f3e089afbf31fffcd4d469955b45e34b8436013e5289ba88a98c66f5f9d62. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZES82174258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd50987723e4f9ec1a36c5b20b0c14c96fa579e07c7a8999640c08f74ac01c14. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZES82174259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e80b44967c6da7044e50bf03d6846977584c39aae3fadbbf5127de7ef4edbf. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZES82174260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16cf01563ae3678562f6cb7227f22222740127125f429c52e782c8471de4581. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES82174263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a872725a2c6e72aa5cfe7bc1eac07ae57c0330366bb97e5a6ed2c13e30f348c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES82174269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eafef4bbe2ca25864d46d5613e85366cc6a82c333a86df7968745c8973d682. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZES82174270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2648091a7a3aa4f0d0dbfd6b02e11187d6d666bb9ce3adbf7b05d9ed0ddb35a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES82174272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18d2340cec3c3362fa9f02153fc5f0500531e535bb6489686ab3e03e5f05bd8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:39:59Z), 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/QZES82174273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf64a22109b4f340292d573c5ac4dba0bd8ee8f1821cedb5af56c7edfdba9d9a4. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES82174274.
Rec Room Volume 2 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c694fee99d77431c0619d797b9dfa19339686905c129de8248f37a9bf49a981. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES82174243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5553e3b86a918120261d9be90c54ead09d041a4fddf14334b5d68df76bec5181. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZES82174245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50072eac11f77f94bfe72b6c7edb198799aa431d86a5440b46de31fd7386b2d. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZES82174246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7263f7aa482ca146526eca16316fde799bfa7252c5bfd0364619f7afaf1419. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZES82174247.
Rec Room Volume 1 (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4691e0ffb1e996d479b7decb953e07c0af3a1f9afab1bd3e2c27a3190c335033. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:40:13Z), 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/QZES82174217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e99c29d3db8dcf657e0a5fe2592fde5e4c2b874e68d222076f2b9323234fbc7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES82174218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7f4f42ce34db266f29b002e00e75cb026348ff6d04649c14ebf44c984159f2. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZES82174219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf5cf978bb4d1d5d48915fa2bc40deddbd916b2545ca83e211fa810d57df36a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZES82174222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0569d95018b4aa336feb58db4a570a91486d2905dd0791f0a11d41577c419f21. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZES82174227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb894b6aa7790be39f21273305a774e8e40ae3a37aae10abe9a84904b0ecdcaf2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZES82174228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc92447e68961c99bf7c833eb3b0e0fa33c132d9f52565e1aebfe5ea6d3c2ca9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZES82174233.