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 0x2cdf539bb28f553384e53393ff5fc606088ba450cc71a74d23f9ff7938a7f721. 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/67f64e6d-6479-48e8-9b2c-0f9ea77362f0.json and https://artists.proofprofile.net/proofs/artist/67f64e6d-6479-48e8-9b2c-0f9ea77362f0.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 0x74ad5bc182a7641c05795b81cb7dedf12cbe1fafd46dcb321b8a1791f47651da. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/DKADG1400621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91726e8220ce513e966d57935a187963c3e45d94f229c45c498c9981eeed7a91. 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/DKADG1400620.
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 0x5d64108bbcbfe83f24cc1007ffb7bdc82e925a3f0abd732972bf43b96771c35a. 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/DKADG1400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035f5d60861a49ce823ca46ab00280b773208a13061c8859632f0c48dd2cd1c4. 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/DKADG1400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9dcb4acccb7e09d638f5cc166dc3a54f5b0c2737193420b9329719d3d1cff00. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:55:13Z), 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/DKADG1400600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7247e104d6368ec10c9f551991276a810d49c1b3c466ab01519af0ca49f009. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DKADG1400599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90be88e76af0f7390079b8e29e5d5873f96ef32e1749187b35f15a02c6b2ca2c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DKADG1400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4861200af27ac27e561a9c44de57b8c337f886ab6e59720b38756dbed8eb81b. 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/DKADG1400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f6275aa1b2209987ee822a972487a9d8e2144832b21a19e998f5cf325150d1. 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/DKADG1400631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d59437564b2dd12e1e35493bb25889278d2fee76691321206ca9c0921d66d2. 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/DKADG1400633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd743b9552e7bcab965143bd93ddb143be590f1811df0fb64d06e18d9ef8feff9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DKADG1400634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09096e54cc16814801b5427cd7f8be66bb356de1250ce1ab13e9fb7b61a9b583. 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/DKADG1400636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907d19c25de49cc8de31499d7ddc61c8ee4527d3644b2f7be686741f86e11440. 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/DKADG1400638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112c2c6296653ff652de7ba62ab4f817b603c820b7fd4327214636ba49c32701. 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/DKADG1400639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca2028f83fe45d9bcbd85b7ee4f7acea96c3b2f440343604611b5676bd1c684. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/DKADG1400630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6f29a0b4be2ecd9e6996958b07df6dc59716655f391d6149aac5b74cf12fd6. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DKADG1400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcd9c8a242dfe3b699337738de7976fa05758e7b64130afceea591fa5735b8e. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DKADG1400635.
I Don't Want To Hang Up My Rock And Roll Shoes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c46fb8afaf449e9873ff632224a9ba54974f4af2ab8c2d00df6d04b2d732a1. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/DKADG1400637.