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 0x8a7dddc9daf81fe285e19dc247187a7d4858aa5ab9109372ea08a31c49c50cd0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef9a250b-377f-4631-a472-26bc281006f3.json and https://artists.proofprofile.net/proofs/artist/ef9a250b-377f-4631-a472-26bc281006f3.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 0x9d53c869fe2142c8812d6ce44949ccfc8792492e778f8510a690cd02253e362f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/MYWT19850301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0481c0b5038d38374744b636754536b264aaf4744ac52812a0da29bd3f5b844b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/MYWT19950282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811744922f74a785d2572e8db199e7334feeec15ab2510f090c0c977e88d69d4. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:30:42Z), 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/MYWT10350069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010f9e12f0ac7a5e51adf3224251ffb40b59b19c584bf5ed9342e0d915be867b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:03:12Z), 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/MYWT10550251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59533277ea55f59494269b9bedc764bc22d3753da3c6341c793af06efd2cf7ac. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/MYWT10550252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe139536775ec597c9d7c5d01e2c7a419a69fbf44441fc014eb56b9595938453. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:01:39Z), 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/MYWT10550254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768a04da6ecae93a2652f152b3a90abd16911ec9318db0e6d08e653a54e12c27. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/MYWT10550256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d3048c153c8714a07be7305499ad79f6723c5a08fdcfb6404441e0ae7371e3. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/MYWT10550258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cceab01196a13fd0142990e26eb5283463583620689e758993e4ade5821f0d. 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/MYWT10550263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab85b1ed79b2d92491a56f9fc305c90d580b5f576357b78906408709b901c14f. 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/MYWT10550264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d33097864a74c7ac31dfa3a7815136b56254dc29bf708c27fb7caa8a511512a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MYWT10680018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81f27500f38ad6e10a9bdc028458ddd8ce4fcf0950574e4fd69cc5f83a5c3b6. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/MYHY11901105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a4c17548c5b28568e1b8586b34b7c48eb9231927c76e96579efd013b0d578c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MYHY11901106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d2cb2a91d12d7080f7cef353b37ed63fdc7687952676cdc925f2223b751e77. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/MYHY11901110.
天下的妈妈都是一样的/小羊/娃娃国
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa4d10f967394e41f19233fbabd8274f7b4d30b525f501803761b98f95f04f4. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/MYHY11901123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3406b38376871df2c57c3a605f2d55eb347115f531df7e347eece997633f48. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYHY12403603.