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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef8c65882a9fd4196b480c9e659d459a3d8e4f50d9ece5a7cca97fd3359aa92. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/719eae80-1348-4375-b094-536181822596.json and https://artists.proofprofile.net/proofs/artist/719eae80-1348-4375-b094-536181822596.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9b61194eed06415fba76ca386b5638829e2cc6d5527049c4dd7cae3abe186e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/GBLV62307958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd15c7c86d53768fe0d8e2d150d9260c33ddf28c29ee89ab0445a5602a6d3079. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV62307959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931c287c875bf839b843c11c94daaff97fe6a2a225105a37efc4ec9f19386a56. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKWNJ2400155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b38f224445d9a9a8f033942355b7c72707fff8159e8f146ed22e3423f32df4f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/UKWNJ2400156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680153e5622bb558dc86f9a97c73a7e2bfa25a79393c931f8d21b0518dfb9dc6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/UKWNJ2400157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18f692fd6773e90751c526094144f7a3722000811bcea63c592399ed2297a6f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKWNJ2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4591c7042a3ac03b0080ed7661297eb298ea78b90aa635561e9a19e8a083ebde. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKWNJ2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea92c6879e4e1b581b599da3c7d94419afad9ffcadcbaebc3dca0e9817b343a4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/UKWNJ2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb52ed08324213859c67cd2c07323b9632307e38710cc544e4618f2938ad4989. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKWNJ2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331dd3be7c9040e63fec16c14bb1a6e56fbcf79a377d9ebb7d030200935e3fba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/IEBAE2100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd54fff0a458fb2f0c17bf0d7ca37ed2868cf2d844839097080eba5376cf0e0. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/IEBAE2100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd492cc3e5aab8215393b24d3f5d452e68e86aa9c0876ab264b8bb0da6cfa786a. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/IEBAE2100111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6419e1118aaa071763c3ef49640e68777d3f2e1ebfa83b74eaa7dd8b180e071d. 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/UKWGH2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19dd5ed7adc08a7a01ab50d274ce721275c81382fa0d18feba8d72ac1ca646b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UKWGH2000002.
Transcending Into Nonsense - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefde6f33801e152731005aca4ccf59971227644497ef4bb5b226cadd538fc470. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/UKWGH2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa384b3269e89ebd7192dbb735c650686410793bce3ad1a30d7e8e039149f1b83. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/IEBAE1800192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb32e82a7ead183487319c1805923b21e55f2c5cffbe49d7074df6696134e1d. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/IEBAE1800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd483213766d81742589e6d18b82e9f8c0d5919ced232a099af3b4a3ec21dc0d3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/IEBAE1800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe413d61cb70ade5778bc30df6a4edf03ba321ccefc5473028a4ed08ffcbdc353. 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/GB8KE2050509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cca7cd749a86c54a33265c2be94f8aa8ee8a5e8fa7af1e22bd2809105edb1a6. 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/GB8KE2050510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744a6067993b22ede4b24319d0b0b37af7102b54fb8a84b814cc76723ea8b761. 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/GB8KE2050511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43c006cddf0433838b2856fe11f308be42ebd906ca0d3d6a19089e96ad8a3c5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GB8KE2050512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab283f6810b252b0951a6208ef9a460b6abfc5260eaf13fc58d7c1a6d2e405a. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/GB8KE2050514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72314ff93020d75692e45936835d240a5f36a3f12900a514bbf6de8e6b7e171. 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/GB8KE2050515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c92338aa7a332dec289b95161e0110952c073be80af06bea5a685ce0405e0a. 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/GB8KE2050516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3080346e5f11f8e8b00cdec5a27b0179ab4c4a854b0ff7402c8d2551c73f793c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GB8KE2050517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457ab9e694a00da5284eb370bb561d179a6e6a343760a36bafd123300606d428. 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/GB8KE2050519.