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 0xb81e2a09b723c16d5f239e3d02caa8a4d05e4a799895d912b20ca397e5d788c9. 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/8475ec35-0623-43c3-b2f7-4aab55906995.json and https://artists.proofprofile.net/proofs/artist/8475ec35-0623-43c3-b2f7-4aab55906995.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 0x96aaacc4441b4f651bc6996643bf787857bbe37b39dff574d561a3ce92396193. 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/TCAFU2158795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e6d23569d382dd573538c36b73e298eb042bbdaa5233d0e2ed6b2c56fed462. 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/RUA582001791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83a1711f7ea49180857d5ddabb709063416b324044de2453ac387a956a54c09. 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/RUA582001793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53036a0e587849d8ddf40529d460c5c4380ea32a0be2dc21d7911cb29a383d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUA582001798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47f98edcc29b19eaecc2a29265fccaed3132c261e3a6789fa6e40825860a29b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUA582001815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a92a5bf52f5c05a3d98e250f457dcdf783b8421d2b8a5c0af5bee33a4c6be26. 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/RUA582001810.
Люди дрессируют людей (feat. Big Baby Tape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056f6f2f8bbe057a461c0c30f01616b4dbea8c251ce1633bdb7817e73faf2aba. 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/RUA582001800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5300c380308e876bec592c40aefc2459347a60cd0bb221e7735233241ffa05b8. 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/RUA582001795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17381ac7e1cb63ca14e9c9a8e6beae1a1e71b6051edcefc8107361ea1e938132. 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/RUA582001813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab0daa4e87c924f188c8fe49df72e53e03a39255935bc7ea7983cf56e32f8e5. 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/RUA582001814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9069311e6bb2348d488a96989e16e6d2a5765152c11cec245d28fd69c299e750. 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/RUA582001808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4b6cf08e7a18cf36181d08153ed01ba3acd7c66289da1370de03df1683110. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUA582001797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac635679a398be5ab3cf2bc6695d33b24f46355bc08ad3356781352ea3e32c5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUA582001801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f4157487e1711d2477b2c53f79dfefdfbeb34b37df6c5977576f42874e6c3d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/RUA582001812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6c97d83527ff47f5d96ea192e16a56f1699e84e83e7fa9f26b0290ce62a894. 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/RUA582001811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca092c27b34cae0167a95d0568c42a9dcb236452f903b96eef560a5fbfe98468. 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/RUA591801635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874d3867d0df21fc9091e9d6fcf39111a5d7ff28d5c9f7ed69a2a99580842a51. 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/QM7281747365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0438f71c83c2ce4a6f90ba4205051141f33b6ad96b74683535d8fc5c660cb6. 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/RUUM72000568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6d49a0a9dad322bdf7710632183d33cb82c4c7169739bdc4bbecd492c6aa55. 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/RUUM72000569.