Bond or bonds may refer to: Common meanings Bond (finance), a type of debt security Bail bond, a commercial third-party guarantor of surety bonds in the United States Fidelity bond, a type of insu
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 0xb0efa941e53ea7dd095f1cc3b30bf5f5a8bf61a4ed4e1e053d4f7a9a43af4109. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3bb2a31-4dca-4697-bd58-5e6a4981711a.json and https://artists.proofprofile.net/proofs/artist/f3bb2a31-4dca-4697-bd58-5e6a4981711a.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 0xeff416ac650c8e253f67ead191cc201138dc7dd08d44c357b3ede8b5435dff8e. 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/USA560902130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c68fb01d6f21c926134edce1a70a36f7f6f1fb5b62e3d4d96a9827b0528f86e. 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/USA560902133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d017a784a1453f0caf9411a5e192380def32fe3ae50de2c95f2c839e82b3578. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA560902140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2d3dd1678d77e3dc01a8e35ec539d8b303055b5e381721cd5631b397e3d5d4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA560902141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8aaa4d78e310fc84579a3041bfe0181a755b801b0c657d5a540cde9ed6d2a6. 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/USA560902142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a2306d5eca905dbc7bbbf0578c82244c2110d8b1e1d8f946cd99cbf762c6f. 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/USA560902144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f66f113045ac7989b829067c9eaed411904d0671b88bea215e6c15acbc0530c. 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/USA560902145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf772789d5bbec3fb7fefcf78b80d9a93ae15964806a768bf2e54a113a4ecb2. 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/USA560902146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc08ead2b167f523f5109a2eecffae6a0a688627dee32d6f36f6450e588d5ce2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:52:45Z), 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/USA560902147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a7ead19902be5fa32740647f9ecf4388b83f42f4ec40a4db82eb182ed92b40. 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/USA560902149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb488a3162c78b50dbe2b3acec75954de99f4bf13826dbc3a04bc1ef3b4ea262. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USA560902132.
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 0x6dc809083435a165d423f21480bc5fb9c60fcd9651e6972d1965c81fd12a0d1e. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USA560902134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6241101aff683f5cc9bbc3144c834df093748c1f7ddcb4b00ffc48297e104c15. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA560902135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb0e6ab0e6cdcdaf596f33c5e2870cf37ea535652bf692b9acfe6ecf405b73b. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USA560902136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e98362e862e07447206f0f6c8a4ae4f490230f7555dcc26a55cffd916f366b1. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USA560902137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6beeab3047d82ad56f6c6f83f1f45934f5ed9ba11ad9c3402433ddc5cb011cbb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA560902138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c714e3c322399f94b7a0b9345a0114d7b4ead638f3d0bd437a2a9af63c3c3e5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA560902143.