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 0x685149787452182b47e5eb737a9ca91d3d7fa876cdf12b6531b8d2784f30f6ad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe25992b-9259-49b4-90b3-2634a62204fc.json and https://artists.proofprofile.net/proofs/artist/fe25992b-9259-49b4-90b3-2634a62204fc.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 0x9b53e84da1f245c1e96243d351ba8420f59d573b148280031529bd981f7d4022. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:35:19Z), 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/UKL3V1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118db3a235a6ba55a8c965d0f555af0f5f0d2fd3f39d236c74e4de57a92fbf5f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/UKL3V1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bfbb031e2f169f2613802c80aa0fde13fdcdbd4ad22e1a921dceb9350aa4f5. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:36:45Z), 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/UKL3V1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x183af3d10413e05a0ac9046c711841e372e23e3400e3496280dcdc3ae34d6fd7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/UKL3V1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c048e5c432bc04ff85531b3bfa3c788d631862bfb6cd901c2a053f1008467e4. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:15:51Z), 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/UKL3V1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da5107e1ea6929054ee63b89f7e5ea8e32a9eaeee5d62b0920975fc31b2aa37. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UKL3V1900013.
Rose Ellen Dix (feat. Mallory Hunter & Jash)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d50f87b46ac61c847396beca101aa44596513a9649203fb1c9929b79614d878. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UKL3V1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58868fd33bc9b2254c3dfeb61bb28007626fcd381ee798bd1a4ee1f881560b05. 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/UKL3V1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ae0c4988ed4217fbfc35ce7a7e3da060e2c69e9295ec7934fa8878bfb199cf. 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/UKL3V1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da5107e1ea6929054ee63b89f7e5ea8e32a9eaeee5d62b0920975fc31b2aa37. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKL3V1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d50f87b46ac61c847396beca101aa44596513a9649203fb1c9929b79614d878. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/UKL3V1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd56081fa26b8b243f252615d512c8186d33704a76172beddf880dde4d70ea37. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UKL3V2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1ebc10a3b8be476e0655b2e07697558f665e49db78ad79a38572e20e2d5290. 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/UKL3V2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4713835f09b9f1d7ac2b66caed5fbfccca189894cf4dd30dff8743f523040f29. 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/UKL3V2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428f5ae5bd4053580e37e65038a8a842ad38c0780dabcfee9a0312e63bf96cef. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:30:13Z), 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/QZFYZ2157392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad348982d4f58fc93af7b6f85a538f5356bfc48056374f141c0cc0b4109fae56. 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/TCAFM2159864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e023c714ba50dd5c491171daea083691891b401f91519fb23a46266a2d6225. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T08:34:58Z), 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/TCAFM2159866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21587af18a3473b66a2add0b23f3b4b140cfdf0f3d04377e93676fe997e9dc63. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6P2221653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e9b71f50ab9cf5cfa67636d02d897fd6b13b6630ab3c64abcb1f2206347ec5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZK6P2221655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384942e8c2d9149e1b46f6c51386b0345e0cdf7c721b4ee8d21bb2454cc57c04. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZK6P2221656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637cbe676d64a6ff372328301402ce3c293078bdc6c2a5eff814222ab46d351b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZK6P2221657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x876471f4eb93bef8d5af9a37fdc4d2146dc1c921a4e3471fdfff4d9935efab89. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZK6P2221658.