thumb|Rescue cushion Rescue comprises responsive operations that usually involve the saving of life, removal from danger, liberation from restraint, or the urgent treatment of injuries after an incid
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 0x731336397c7df569f1b7b35bea4078619c27c569d3f3ed5c47ec009833e235aa. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94fa4f82-8cc6-4202-b4c7-feebdcdfdee2.json and https://artists.proofprofile.net/proofs/artist/94fa4f82-8cc6-4202-b4c7-feebdcdfdee2.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 0xd742b1b7c4a42cac4ad7d0d971d3aafe6ab265994370a64ba6fc26bbd14a553a. 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/USDHM0601327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf177f4d636edf20561bf5b0f8ab8f73ee75a32385af5ea18b87bead34ec6482. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/USDHM0601333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc212c950be8c968deaf4e583021b6820c1b7926f2871ea0df9223927fdc8f612. 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/USDHM0601335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917a5974a4f8b3609256262d327e3fce2abc5b55fdacddb865762a14a3590c8. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USDHM0601336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5c1581534b1dc76a33c98fcd59936bc64a3617e46d8b62608492d498b8cb54. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDHM0601341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf15524adf7c635b5ff0299de35faac02d5c71bbcfb27da2f27880c48558faeb. 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/USDHM0601342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cf20d890240c70f2f7324085b9c41800cd97dc4ed7d9c98a3b19ae9324c920. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:34:42Z), 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/USDHM0601343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3b3331cf10b06706c9f98167d54b22807c840445fe97af2c6765c0458633b7. 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/USDHM0601344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225ab54de2934ebc3f5621feccaaea01e942ab8faac2548fad26453686316144. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDHM1008911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb89bae776f7b71213eb655b0c78c8f22fd1c41625b79807b87edadcae5a995. 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/USDHM1802505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea653679ceeca6001b9dd57f6bb1704528d2480836d3e2c7a92434831ad251e1. 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/USDHM1802507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd87daf3cf1edf20b2c367cf973708d5e6c41bd3d7a95821edd3b7b2f0bc973. 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/USDHM1802508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639008a99fd075e485910ae14c04d81e62490167df68219fe8259d55bc0f0b1d. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USDHM1802509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bbe895eef259425d4914ab7df4117989283d8ea305a990e561d5af0e15b1fb. 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/USDHM1802510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c8acdd75a4139ba1b9ff2a4438d81b17baec829db15d571a1ab4e86ccdb901. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USDHM1802511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e98673241c802315e13bc44370a97bc51a5282b0de98f9966dfa10f7aa0a21a. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USDHM1802512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f82f7a3d1d5fb93b4fd6ad522f80dc8a1ff50f61154e164fc77980fba275ad. 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/USDHM1802514.