Tie has two principal meanings: Tie (draw), a finish to a competition with identical results, particularly sports Necktie, a long piece of cloth worn around the neck or shoulders Tie or TIE may als
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 0xd21505613792576837b2f18c765ee59ac8e70e8ac36ec6ffee3901e07c46cd2a. Chain 2 (Bitcoin): anchored in block 953667 (2026-06-14T17:49:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/572c8fbb-7bd1-4897-8029-66cf562ef6c5.json and https://artists.proofprofile.net/proofs/artist/572c8fbb-7bd1-4897-8029-66cf562ef6c5.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 0x30cbb5f411232f177062eca7cd8828831ba357ce77444e61e0ca42ef8541d431. 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/QZGLS2370309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb556e4e6a1ea290fe2e88ccf726501e439ab765034d7a47a09cc9a7804177164. 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/QZGLS2370310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1007f5e5ebd79af6db235246d9885843f2489088d55fc89b995032d57fa4f838. 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/QZGLS2370311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b595cd212addcb2df387d0f3e718753a4da23a1976f766bb5f0546fc45674f8. 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/QZGLS2370312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7010e701c0c8734c80111721c5583e6bd18737fbf1016c49e155c5fc7eb57e. 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/QZGLS2370313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985d8635cb7d8ec3f2b1dd177bc58375ad519301a038209e4c85fb37037aac44. 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/QZGLS2370314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8eccf834cb98828d5493d6e816288f003061f3b344332b82aa8f53e83bf7ff. 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/QZGLS2370315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910936053f6fc35d5fc3deae3640c367d61f8ccfd0bcc00e24b386a9bae63d2a. 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/QZGLS2370316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c7e389054f59bcf10e3080c0cb166eb51ec8c8cd77ffdf07f65e88df1b124d. 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/QZGLS2370317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff75b73b4876cd9985bfc7263c1507bd24dafb7c18aeffbe3bc7d1e0d5dddeb. 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/QZGLS2370318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4cbbd93f716ae1d221e34d8f3e80ba8246686e90fb7d5621d10d269013f0a62. 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/QZGLS2370319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b66a7b2fcd3d8088eb95248c24ab11b7fd62a83de35895496c5fe0eaf09e187. 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/GBLFP2428580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12483d14550c86473077638565d7c235fef6cc11f77d259fb6ac4696d779f689. 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/UKXN22392534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1d2c57c81de356ae37df2a8827a70e652ddf7bac1bf881276290a6ebbb502f. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/QZTVM2227577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472b037e7c756ead8b3d17cccd0a4b2fdc18bc4aaf5821c8acb04825be5a0070. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QZTVM2227579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1ba90c6aa94af1032fe2ff0f1c4812b4ea7500dd0963efb0f4ba432ba474d1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNJV2282850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa978dd4a99251b99265df42c499cc7ae0611204ecee45e1694bf6ad9fffed6a7. 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/QZNJZ2241239.