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 0xfa33266ae48bfe4936a669764b9787340b9378c27fafb43837a5db8943531779. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c7838e7-6d4d-4c39-b67c-3d46d83b879e.json and https://artists.proofprofile.net/proofs/artist/2c7838e7-6d4d-4c39-b67c-3d46d83b879e.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 0xf1eb8a92c33a40a41b51c57efd02e4ead6bcbc596d9b095ef19a1e00b26bb656. 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/QZES62538807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5158acd3cb3ce1c0852226719171894b0807a7c99ebd9f92dec97fb8b3ea5cd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES62538809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf671a9ab82c4058f6c85ee5b7edfd2be17820340b35f4ab1f1b809fbd30a7b89. 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/QZES62538810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae394fabd47fa2601dbf45c67df6562081402440cfccefddc96dd33d84c5cdb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES62538811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb2a7ddd1859ebf0e9edae016dc8c571046ba0a55917a886caa4cadc4f88500f. 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/QZES62538813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20d915688b604405511077629c73d3312c89a0c0dfdc272cff7c0221e3e0dd4. 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/QZES62538814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705a27d891ce3cbf18c6870806dda427f1668fb9bc64e31eff6a44027d6b87cd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZES62538815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe496bd8d1562b10d5f1ed688b553607bae38cfb5d834244a127cae599fd84910. 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/QZNWV2392139.
S.O.B. Style (feat. P Wild & Emperor Tay)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215c0eb0c3a4724c55b5a1579dc37217dad472d232001c760fd5f9337b8854da. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZZ7V2434464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efc52a4ecdd702007fc7b58ce171ada970c07cb4234e402c189ae9c93d5f144. 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/QZDA72572626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe956b01909f0431e2c8a34e8b548266989e5cadf20f0a1a59312af5a6c87521e. 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/QZDA72572629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a21c0e90053f4da8a2f0ba71fc87a6e381567212b7aeb1f032d45d2338bc6d3. 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/QZDA72572631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02907df8e8bb60a3562b585abee1ed46dbc7be92cbf13a050a0ed0a0c4740973. 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/QZDA72572632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cbef82d4c427531ef21c667ddebac45b5c5182d0422916cfcfd58e9149092bb. 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/QZDA72572633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba046a2b8cd530d8ac0306205b01ba2bb1fe09a4204ad6e5c886097a182d18f4. 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/QZDA72572634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4e9c1185640ebb79d4041ee1c6485dac19d5e2830b49cc2f2c8d25d246eb0f. 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/QZDA72572638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4edc4ef2e1d70a2879ee5eb4aa2deb0fbd8f3bd4f2939e7af0f15475568de6. 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/QZDA72572639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa727fca5be53aec2388ef9b0a234f31b7950858d276a5ffe1f2d4d9b90dc9678. 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/QZDA72572640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18fbf0cd54edb9041d1887757a51ae0aaf3e9d0912c4c93a5ff8f170847fa047. 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/QZDA72572641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde7d46fa3843e439c9783e39c8b5b2d5a90d54619e7217d9291660709a42c73. 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/QZDA72572642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b35da4013a507620ced9c0cb7a8fc54a0e50f17b465141b3fd4b69abd891da. 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/QZDA72572644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4740b347206f5b8dca32ed455ef0bd4f45ade20f2c05b41d81464b584cce7838. 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/QZDA72572648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d948be2684745b3318c01d364f68b0e139623711f712326dbf83f22ada1d43. 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/QZFZ22153431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcf9655c73971c710e474d84f3824bc1445697fd44974608387e4bba24fd8b7. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZFZ22189936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705a27d891ce3cbf18c6870806dda427f1668fb9bc64e31eff6a44027d6b87cd. 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/QZES62538815.