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 0x3d4ba1b1601bb976f10e7a408181eb153b1ae3a95604b95159be345133804a80. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b344fc4-d389-4a47-b7b4-9445ec3a9faa.json and https://artists.proofprofile.net/proofs/artist/4b344fc4-d389-4a47-b7b4-9445ec3a9faa.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 0xfef5a8e38e647b4a4066f29c0796787a28ec53ea5dae41396d0e36e7a5b15a91. 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/CH3140600345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfe17ed3558bbdacce0ba7a0b801299d59a240cde9d27dfa4d48aae8cf18595. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH3140600351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6d96f70ae5ebfc07a97a484f0348fed725ae27462a374eace92db8503dadff. 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/CH3140600352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579d19a721e63b22827d7c58171641095a885bcdf9b9b3add283930520c02a6a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH3140600353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32da9838fd60cf548570e450d5c9d35384f18923f60a49e0cd571542421dda9e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CH3140600342.
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 0xe93d8011d066e1bb50b399fe78626c7ca6b65acdad0cea232dfd11f4715019da. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/CH3140600343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf7b265e4d05c6c46465e742b1051026a577fd96a22dc31d10fd53de1ffebf0. 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/CH3140600344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe397f6c0038990932325a768f5a2139755ec8c04c35355cb16143f2c0c5376f9. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH3140600346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a13b296ab101c13d40f4f930cc528cf9876348a8b6a0cf3e73a417faeddb08d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/CH3140600347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97da9802a4ed269a3b5ba94d5506fdbf86b344add8e7e0778303431b34f03480. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CH3140600348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8046ed9c5b66e82a6cc51cbc1537f712c24cba747924d5f8cf321749c73a465f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CH3140600349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf708a651b23c82772728d3451acb5510de36e49bbe1b5d9da584735545282e0c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CH3140600350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06387b69a119da58d2f5e84023ed0f56e1f013a723596ae300f2e04eb118d41. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/CH3140600354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf84929adea5dd79b22ede39aedea3bf56955bc3ad24d6dd671bad80cb00107. 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/CH3140600355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef0e5b3d6eb7a3cd768eb327479296d5a124707e01ca323757014a699ffff8c. 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/CH5170700116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc78e9ebabc63694158cdc993cd9c80d969e3f74ea6e2dd65a2fd57b570889e57. 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/CH5170700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759e501b7f5a3b18b2effb3f4bd91d02dda9eb4d421adb890a241f4921e2bb67. 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/CH0801754201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa075116e0e779418845e8472ed14049d4077c9e0572fa3ef14a4736ff149d6be. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH0801754202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d24ce46c05fc84232d51f5d10e634a7a59c86db4356d0172da2a3a64da5df85. 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/CH0801754203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdf7373bc62aef8bc2073412f6ee5841ae29222577776acd1905951724f94ec. 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/CH0801754204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a87c1fe75cd028d2375c6a88debc9667db06f5e801bb0b8548ec90d4675ec3. 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/CH0801754205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88930e50aadadac8587bdbd576b7f7a894d82dc96cb0eaef7d8b5f04f4cfa115. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CH0801754206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ed2d0687cd837ad2b8d649981344a3fd679e994212f2a1f555b3de18af5e45. 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/CH0801754207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3450e5c8cd047e351891d6871ac04ad5289214c56af60120279789a60c1de2. 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/CH0801754209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06777e113a05e1c68256667556f724a66e8798c05d030bf600d3f26f11d24b88. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CH0801754210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae13804d1767c72f07484ece5c6eacd89085bf22a15097814e341700fd79b2ca. 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/CH0801754212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468504c77fa69c070275deb8cf8401dc8b13987d1e3fd87a1127adb99fbf5a0b. 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/CH0801754214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae18f66f92dd88c2df8fa616151ccf3a5eb09d14bab335361ffc967927bdb0e1. 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/CH0801754216.
Godzilla (A Japanese Love Song) [The 2007 Attack Remixes]