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 0x19e58de2f0702b5955c512aa4fe39352ea3c57681068100205b737db4cfe7a02. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77ba8287-e4e9-4040-8705-dc200c0e7059.json and https://artists.proofprofile.net/proofs/artist/77ba8287-e4e9-4040-8705-dc200c0e7059.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 0x0d42685e703e69b0b257250b8cb42f3711f9e8fbcdb1e50afed71365a15e0351. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBX721700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3677afdf71404ce0066ade457f15843f6b48c065290475559b43680db93292e4. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/GBX721700159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a29bbbc3d09a6ec762bc9d7473dcdbc65874be11f81bb67b89db3b1e9ae4f9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/UKQPZ1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0c0a19d94343bab1a8f165db8c4813f7ede541ec08ad79f1cd8b2dfd2066cd. 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/UKQPZ1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c112a43d0858b187841d5a56866f2daf81be1ceede70a161fa12dd8d338123. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKQPZ1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2a39de23cb45a06f196425367ab567e00dc519c74b97342152cae9c9636703. 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/UKQPZ1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c2689da988e6cff86f9ffac8f8e8eca1a07eddfb5559a93c591a51c2c8f3c2. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/UKQPZ1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04d276cf7fcf989741ebd338d2dae7ba324ea56bb6f03e4564118d9c8b9b2a8. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/ZZOPM1900986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4070c9cc309c748567bd388814cb8a762e26e46c061e6e4d310c0d32ba24c8. 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/UKQPZ1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563d4ba7eea7623f2e2b55e48d9b616237820a7142928e2ff8151d8fb0a7922f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/UKQPZ1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c19c086282afcfe3ecdc535d40c2b3ca085c35bd6982128288d8b3b063c34c3. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/UKQPZ1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b22c8a01ea7167a790e845492b9155c09cf42e36cc8b750638ba58727a7924. 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/UKQPZ1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fc0924c4513a4d37492dc94088f8f648bd7d1d615b86192f71b33a64ac08c9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/UKQPZ1800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda95bae1b33949cfb3ab9450088e800e39dbe256fb2956fbf43d393723b40814. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBLFP2234462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f04a9bc6289abf117b045390c04ccc5acbec83e85dfef45ed1b7f2656ea4a97. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBLFP2478904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf280fe92c874887dfc0c83cf2e17882bf6cda65264e51e05d4a9b1c55f22740a. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/GBARL1801097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c00bc0744959feabda3dd3b15269debfbd094f6d48985bf8f3623440c4da22a. 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/UKJDV1700306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc340ffabb03efc4e62439fdf65328971d0fdc19188ceb70fa6c383e306e491ee. 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/FR96X1721885.
Dumb (feat. Tiggs Da Author & Belly Squad) - M-22 Remix
Dumb (feat. Tiggs Da Author & Belly Squad) [M-22 Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362eea18bd50d194c913b26f01c0721bb09751f092806596632a0afda0010854. 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/GBARL1801525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87c37cdc3123c5761ef74399dbb8a454dbc9031556b79938e5cbce04ce75313. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TCAFL2184078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b066785ddabc14dca7c5a294b99b529ff0571e2b9f1438429de79b08a130a1. 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/QM6P41819881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269a969fc89c687cfd34e52b8881e7f4b4979f9abc080c5680e4a3ae194eefbc. 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/GBLFP1886558.