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 0x31cc7cd47f8b55ef3b9362f8ba5dc37709f5e486de2b8fc89541da8259d838f8. 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/4a9cff89-4bab-4142-9f49-af4b86f2115e.json and https://artists.proofprofile.net/proofs/artist/4a9cff89-4bab-4142-9f49-af4b86f2115e.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 0x65d95e3ec9a4d23950c6dd21e7aaa6471ec7d32db5e04b38e6e840de7083f4f4. 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/AUXN22286277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff4a35984a3ab1622e9c9125a9f58e7b9a6f34f4301111622adcbaab1ce2865. 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/AUXN22398748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5397357bf4c2f0a92ff0f82affcac32960c62da4ff6cac1c01b394783726ad3. 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/AUXN22398749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c6ceaa2a0f5e650e4467cf43e812cd490813af14c5b82846f79ad64813f09e. 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/AUXN22398750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9a73420f86453d498a4b80277ba14047d6887c3a4901ab12ca6fb1698e8e20. 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/AUXN22398751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b9b92cc25c5e678a55054613c4e443fd6b6eb42611caddbb668ab08138b7ca. 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/AUXN22398752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60549bcbf5f3fe2c629a760d24283a77138eb9b4ee72c498deab40536950fa1. 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/AUXN22398753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73597b68ca87ffccfbf872a0654f57ef217f3f9f0d6d88bd4f97a1a46f15ac1. 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/AUXN22398754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adabf249adb8327838e34603420ba78554fcb20e41c8d3858a8a863b131be6e. 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/AUXN22398755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49d4b9086ba01e4ccc7f774fcab37bb57e74755895686331dce522d43ebe0f8. 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/AUXN22398756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770bf8a0dfec9789e921cdf5efbf5c19a22bdfcc903b6e01b41974bc262bb396. 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/AUXN22398757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6d8f1ea44f664133b6b49d012613d16d0ccbb76f58654a1ad76374f3078c96. 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/AUXN22398758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e64c7544a7c8878daa15c46f8841b8f71ad1fa2877b68b26e837e4775e902d. 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/AUXN22280440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7542524da5679c6330f283c5456a7036541f6be74b36d6a3666e1aa050d94a21. 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/AUXN22280441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33961ff8e9250a473b18644794bd213aa40e154b6e512bc80e4c18a053f4850c. 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/AUXN22280442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53285347c3291e6e41c572fbbf3c6d16a5035c1e6f55d2eac85cfb5774558fc. 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/AUXN22280443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b24bf008e11461b4e5f5ce9b8c3a79eeb83b1dcda344c1eaeea39c77ce1a886. 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/AUXN22280444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b4395a14cd5f3ab0dc13b474780ce07c6b1756ccbcb48d6700d44676271699. 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/AUXN22280445.
Everybody Want to Rule the World (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa773c92b5d40a9afb5f40323b24977a94745a5c2f8970579043a9a4f81582f1d. 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/AUXN22280446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078731b9fbea34be7dd97384e5bef52faeea5ca78934c0d6a516d4c37703caea. 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/AUXN22280447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3484b40dabb83a7f0a12a1bc67a2d662c432a3a71f49e45461b8841c5aefc88a. 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/AUXN22280448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0928534d0cb767fab0e65a77109a2956b731e0c7e2c6d8daa58ada9468d2339. 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/AUXN22280449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79911feaff2e1dec00258f1741efa7050ac38bec8a98688f11d90636b945ea8. 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/AUXN22280450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb885a2cb2fd91217d304bfe44db166b94f7029673732a09b87cee9bebb90b4. 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/AUXN22280451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4260f44baaa9bacdab99663dda928de52ebb5e8ed75b7cf42f39e618553526. 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/AUXN22280452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f2bdcf560b3932c99acee32bf5f5ebcc3658b1251276e1214ddabc3f494f45. 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/AUXN22280453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973f12989b1c80705923651c55201644bd053b4acd805fa9255353436bc8feda. 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/AUXN22280454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e4450eaab12c8cce4e21eee9d10b9ab6d40876820818be1af07cbc6f64e3c5. 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/AUXN22280455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5029c344bca2565e17be7d0881d9e0674e077e3fbb43ca87bfc8420494f7afd8. 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/AUXN22280456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd428bfd41df00c0fd7113d8af692ea15bb161da3a9e64d16c7e603dba577960a. 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/AUXN22280457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca31f8dd179b49cb43c1c772aa247d1df716a1879640e242d780145143a48c0. 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/AUXN22280458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6dfc2811daf45f8b4d2b1ec462b2d874f21332de54d86c0b7990dbaabcf626a. 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/AUXN22280459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf9aba40745a9181dd456f74e691d69d2ec23a00bf1913965dc6e4281511670. 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/AUXN22280460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaede571cf47b08a41b4fee54a909cd54a1ef2be6c6bc440d51c4790cc24c3c96. 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/AUXN22280461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab9eb72c4fbb074b23839761c5eaf2a0c78eb5d200477d9447f165b5b0d3538. 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/AUXN22280462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cfb6597a7ebad068101f1da91a4602de80377670887efe88464b9661697276. 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/AUXN22280463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb043a37f3d7e8db9abbbb9f2a133b555be3b70e0a87384840ed460a32384722. 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/AUXN22280464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446ef953034c1b3bb01abc92f2e1ed26059c87f3cb5a271dd75f931f084349db. 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/AUXN22280465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31316c9de6c719131b33ac8c612392421eecd96820b4966b61d6d2a4f6679f55. 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/AUXN22280466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3c06b897fb19c6d5bdadca5c2bbd71cc1138dd472671ddf8e8eeb8a66b0d3b. 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/AUXN22280467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdbac571f69ed11b87cf48ce2956b41545e3257882177628207d09af51b4159. 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/AUXN22280468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949b684fdfa9ed2da2177a326975dfbfd07e6db7f8edce256a62549dfc8472f0. 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/AUXN22280469.