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 0x6ea259f3599346d377b95b5f146da92423ce628bf8e67e91d6c7c165f61dba9f. 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/55bc603b-4137-4ac9-b604-cdd8bb97d29b.json and https://artists.proofprofile.net/proofs/artist/55bc603b-4137-4ac9-b604-cdd8bb97d29b.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 0xbc5fda0602bbac6025ca6a5558b8e7dea813972637800b5f2417ddbf47540bec. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUUM71700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab7ef096dd4d17286f3ab0708b1277126655202df035453201e93c05fd763c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/AUUM71700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bc6ed34254fff754ee34abe198b86810d33bf6e19cd2eed0f392204c75fe2b. 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/AUUM71700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5fda0602bbac6025ca6a5558b8e7dea813972637800b5f2417ddbf47540bec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUUM71700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778d634f06f93365e849c56b4d215c14e82af1a2d628656594c48858e40fa4c6. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/AUUM71700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44143a24b48f19b3bb871612039d4e9fd7c16c4a0838dd761d8acd879a99e644. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:05:03Z), 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/AUUM71701205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bcf4ff4a1630cbf70ee868c7f4c7be9ee445788413b6491f833f3c7ac68886. 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/AUUM71701206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b5fbe280285f1ee7f660d952713f04ad82d6cca206b39cd7407cb0a41eb9ca. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:50:49Z), 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/AUUM71900243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb768a32f8f5ea56970be396aff88f8f8822bb4c96b0825b6f0197d1b055c9e30. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/AUUM71900245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf391a62bdd54e066b42aad962b1867df0a9797ad20f168d8aa3a47e4a46048b4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AUUM71900041.
You Are Going To Miss Me (When I Am Gone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda734ee652d28886fcbd21b84aa94cb871f47d9b70f506e1366cd5d3580848f0. 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/QMBZ92063011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eae66d1d51b166bea92fa919cea8580ded423fd81d52176bd18e066f1c9ddf7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QMBZ92063015.
You Are Going To Miss Me (When I Am Dumb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb12e12dc6936a405d072e8859a4189ce8ada4896844a59960159a30a7c71b62. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/AUVWE2301222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ace13b9f8bc715b59840d1ad3d8e1355c40cf02fb50e62afb2bfd732b0a32b8. 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/AUVWE2301208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2acaae59336c74f0211fb3e97d34430c512fd29decdd0427bff8c36cfaea642. 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/AUMGB2300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d933dd32f47be7433bba396fa69df712cd48e8c5eb5be6ab9ee36b77246b94. 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/AUVWE2301220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2acaae59336c74f0211fb3e97d34430c512fd29decdd0427bff8c36cfaea642. 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/AUMGB2300092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ecf396c2800ff94fed972a9c61b40e23034b97fcd4cc49aca6fee39e36c861. 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/AUMGB2300331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ace13b9f8bc715b59840d1ad3d8e1355c40cf02fb50e62afb2bfd732b0a32b8. 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/AUVWE2301208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef1776eee7286110075bdcfb19be5a709ff43db8cc55b7d5aa9192e3c3909d4. 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/AUVWE2301221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb12e12dc6936a405d072e8859a4189ce8ada4896844a59960159a30a7c71b62. 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/AUVWE2301222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e775cd78a4825dcf3c31e76eeb77ad8afe69879c4c6fe6ddd0b11a7f4f361f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/AUVWE2301223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8e7faaa894221db5ca2a8c08da36545bc70831cbd02422ea1049c12e42ddfa. 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/AUVWE2301225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb1ea1570262c203efc14eaca065d72df1705c5fb7256576815c6b710b73699. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/AUVWE2301226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec0a1c893c4e236b3e3074952596015e181a6237e1f18da031cab68e0bd4b7a. 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/QM4TW2248485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6422c20e29eed97fd75777c4372ac95fd4d9d18ae26671d3961a569ac7dd3d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:28:14Z), 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/AUVWE2301224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c033145b9f82bd3c9d8e1e1e7ef3e7baee32862adfa4bfe81eaecbde7f4741. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/AUVWE2301298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593cccbc3574c9aa09fb1641616eeeb4c94d2ec0d6578f8e48f1414e7a367954. 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/GBCVZ2300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52a4df95fbf0563eb4fb2a6c2f78a2187470f8f91f7a4a2dd405529a99bf46c. 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/CALTS1900001.