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 0x212a785637076f8056c25e9f0a6651052c2660db50e56bb104dd113f80cb2264. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9be85b7-8798-4537-b1b9-f6aca450e633.json and https://artists.proofprofile.net/proofs/artist/f9be85b7-8798-4537-b1b9-f6aca450e633.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 0x1fdc3eceaf118c79f6daaecb7d26accb674f300b8e93b093b2494ffc5377f00d. 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/US83Z2354551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c3a5eaec3ba0f1a6af2a7f6427b8d364d9efb5e128aad9a493d3173df97825. 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/US83Z2477257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffea3707de0adf1c58f65aa50112fa420eb4d7fface0404a50f40a15c787a2fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2349389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4181b663b768d697d5eb1ae41da860f33b45ef00981fbed762309b42a64a891. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2489872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe62614019834d1e93cb211d22c1168f819a32f69a42d38059718cae41c535c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/US83Z2486206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde343f8c4cd5f1ba0ffd32d25c32734b542fd46599e494bce3c8ca4cbe0ebb4b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/UKACT2520252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5971c21b12f382c9ebb504eebdb13fb708f620b77a7ea09ceba7bb5439ef923d. 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/UKACT2520253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3605de7925b5697adba698b157b536dd32d1977f95deba27e41af4908e4f815. 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/US83Z2519368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0547e8353c0dcdc01520009c12af8a44b9c86df2717c9f5c0e7f4723d5d6215f. 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/US83Z2519369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52444a6ed60b9a1efb7951495bfa0fda23d539501e4f82b678d5180464830a2c. 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/QMFFM2500296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b32c8ddbb5c42e5327061cf5dd084f04c50ab055cb07c9b8163b5ef3c7aecd3. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QMFFM2500294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d972d438039d2e1fafc8b5299c8dc0f24633aede595c991a39ceb1c8eabe9d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QMFFM2500295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53dcdb4e4de13112a1fae8e754682f0d79ea70b325cde58fedc3187938722f9. 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/GBKQU2511939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b37f0a6580aa94369a96f7f53ffe81109d7b92e5bc3049df81b3b359890360. 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/GBKQU2511940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa6a5fa7829e5a26dfb58c12299e0718bfa2847ef5996233774037b8118a7ea. 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/UKACT2420734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71da51cd50f230ea078034c26e1e6c95f255326ea83f0f9e0f68d54931333e25. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/UKACT2420735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee736889a3f6df9ecfa1debe70a38cb09229d68192e07963a04ec2ea168a770. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/TCAIW2417398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed540ba45b25451e34f79a50bd069bc605d71a9f2ebade8a38efbf4ffeb3f4fb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKQU2485728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273d571fbcec9129efed72906fa2161c0f0cb64719ae55859856e2e537b9fd70. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US83Z2497463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e48ebb0c3d99a62451ba86159a1b6ece4b440b4400e345f3a69841e58de2b3. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/UKR6V2440589.
Bring Me Back To Life (Vito Fognini Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdacd5b461661585780c70016439c80ad8b4e5ae4e9799e3e87f98cdc2eb8d681. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/US83Z2339770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32f2e48352143e6ce68f38d787015f009fbb163687811e62a65a9a7d724003a. 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/US83Z2331488.
Save Your Life (Solar Sound's Afterglow Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb9512933f694ac226781a685071ea4f8743a17a12c0d4fef2b614eca52da3e. 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/UKACT2320028.