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 0xbb07af52957fb20cb630c9339ef5b9e1959c0dce2604638b8a183880cef86ee6. 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/eb594f44-5f87-4d62-b5e5-f83f3eaa5501.json and https://artists.proofprofile.net/proofs/artist/eb594f44-5f87-4d62-b5e5-f83f3eaa5501.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 0xc2040552daf426bf747e618360b93b5d09788f72fdf573fa63d1056106f36391. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USBEB0810098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038836447fd31223189c0376bd8d52db2af880cb02c4cd82bbf50c59af88ecf3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USBEB0810099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92df8fc6febd584903d785710d08f42ae367468dbc52efaf90cbf4132e58f820. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:03Z), 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/USBEB0810101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b78f706b5dd9acd69bf1be6936acd078a383e27a4a1ffbf34bc716ad32483a7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USBEB0910096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa99693ec2c55ef4d8860ed70578feff0cf7dad394196636c2f640338620a6f6. 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/USBEB0910097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9655d8ce50290e346e14287ffbc5f3b9b3e86c269b8932d37ada5af69f0b21bf. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:16:23Z), 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/USBEB0910098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8546f620f9e94ad9cf7922cf1466a0c4390d8f3af26a608b35b0a939045a5f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USBEB1010040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ade1f2651b595afa4083bbe3a040119ae3bf6c3b49550b1d250049a1bd41ef. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USBEB1010041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfee1af6ed9572fdd7c3c0ba31e025b3a94d222d8aa215c8721fee141a117a6e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:53:27Z), 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/USBEB1010164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6abf10eae07577b67f56cf6ff0c9232690d1ff1a96af445d5545be1a73d37f. 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/USBEB1010165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb453d6087bf553b50f6f76bece1b1b965bf9c3b0254fc12f3eba48f9c409ab76. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:01:34Z), 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/USBEB1010167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0336e053af2b37f2d7af6adb63d3ebea98f40ac14f3af9b977a3d87f2d24f592. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:31:02Z), 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/QMXYJ1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf43942ae5572b6dab5d18498fbb189585a109e24bb1e39a3e6a8882ee8cb701. 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/QMXYJ1100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c631b4704d849e40583f2d9763c9718cc01950fcc65d0a000e54f7a8caabad9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACI1512046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b989aada377ce6df2ac47417dbe0846d39d525bc534f1451b59a5faea3e1ae. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCACI1512047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616dcbe9d09100d64bc8f00a57575d18075408b222d9745504eed87b6d4dd6c6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:45:01Z), 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/TCACI1512051.
Motivation (feat. Mowii Elviz & Amirite)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ef74694b0cca785aef7ee6e163f3a71c9182b630d2d5f30dd7af03be94d967. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:34:57Z), 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/USBEB1710053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b49c1b527aea9292b2d9fdee37adc9da58f7250e06e523a7dd3ce541c7574cd. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:08:05Z), 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/USBEB2410087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef2d6a8c6ebaffc2a17dd1b2f41d69793c51d7dd43d152273854bca5f333430. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USBEB2410088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7517b2c4b32c35be3f9b946f96c4e251555afbda928bda551d021a7c378a2ec. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USBEB2510046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6318b6073e159e4795dd83bb0237fcdd7202dbde7595e1c8ed32e128f98cf3. 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/USBEB1710043.