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 0x1ddca3e8e8d96525c186b4086c7cb5f460d83609ac2aa071764836b6d800dc82. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb5dfd8f-6b22-47df-b2c6-3a6e6944f078.json and https://artists.proofprofile.net/proofs/artist/fb5dfd8f-6b22-47df-b2c6-3a6e6944f078.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 0x90d28930435fafd267d7ec118834114c51e90cf05be078e84bcf271e0a388e5c. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZNWW2300555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f657762d0355b7b8b02207cf821e7856564d39bf52fc261f996b8b3fd7b341. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:24Z), 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/QZNWW2300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5e8ab1e32084c7cc6308455c54522fcb69da2200a4206f7184976065f34b95. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNWW2300556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa907eca24484fd5bfc2edd8b6be5bfa2b8cfaff09b294450587700a3990968bb. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZNWW2300552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0936929a00fc32b9f58433b1b4cbbeb3878026d092522cc7087c7b157eb9251b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNWW2300553.
The Blue Mushroom (2024 Remastered Version)
The Blue Mushroom - 2024 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab58308a477aec214d0c04f3fa08b9e70a29ab638e0e66cf6bcb34a62232c9ca. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWQ2432972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0b8ae71f0930e25e1316f01c9276ff8819900b50691b637591bef820c7460d. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:41:13Z), 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/QZTAU2377845.
The Green Mushroom (2024 Remastered Version)
The Green Mushroom - 2024 Remastered Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583a828912558606df47646ba925255ccd1f021b60a16edf0be49fa7433496a8. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/QZNWQ2432990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232962931419043d0bb7871381061980e642c86b1a25b47de6936d6e2c3af189. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZNWQ2441448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa61efddebb093c0c94c2dee08e877c7a84053b46f78471650782af74852aee. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZNWQ2433010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe632b929d4385c77b65eb568ee47b5342539840e965f83be2e0ee3bf7886ba8e. 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/QZTB32480570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1936ddb9a5b8dce67234acd16939ee67bb7f09dd20b64b2e908d13a8b3e3dd30. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZTB32484521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245e35eb65896d4863d498254f7a6c9b486e58a2932ec1c27f368523ea019e9a. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTB32480545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86eaa610924206c4c61925918cd4ed87d4a92be0d8044f75213725bcc118bca9. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTB32480577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4b088eecaaaaa74dab371af84fe9c3ffdcb368a447d49b57504735978aec24. 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/QZTB32480569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeda9627dc2961ea4948396366abb3bb0e2c6bbbe833ce4bcdb892d18ed0ec1b. 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/QZTB32480573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880e74ada952e275da554bab2dc32f7f965866a71b0355b5633ee17ca8073d34. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZTB32476965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b0b0d084aa9134f6cb2000d759431b9f56e18a8ab33e948da809004e18fb58. 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/QZES72554269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20150b4bec746c5607f4156134e57559f139338cf2efdd434bd81226b74bf945. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES72554270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc243a81dffde3af0ef025f9391c75c62ddf12d74665afb3e1cfdfb74ed4678fd. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZES72554271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0d65967b94b7f08c1a9b9b13b9943780d55876a1c34b3b6423c7b4e2175d7a. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZES72554272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4f988d802bbdf5de672d26e4e9162e99046753a84d217679f53c37a169aa44. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZES72544314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8130f4e3f5e92ef9e6cda56211f2ecadf30446e7da056353117b1b53222a5a5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES72544315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7671052a9df9feb51d3614c30098696b51d25aa447de8e888d7dbe54612bb431. 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/QZES72544316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593a5c11b1cc53f5b404cef14d184594066f54c4ebd2de2acb3df33c3dc5fc50. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES72544317.