1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x132a20bca25b924e77acd52f7c34028e6f08450a12b662dd953e8f6616111987. 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/58546d34-9479-4b07-b06e-8844a8ee17cf.json and https://artists.proofprofile.net/proofs/artist/58546d34-9479-4b07-b06e-8844a8ee17cf.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 → block OTSBitcoinBlock must exist at that height 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 0xa6df1585fc955db199e7ff627668ee219683caedf1ca978c0cdf79250484439d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DECE71900811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff99c5217478ea09363b36a9fb61e4a5a76d78b356a59f69d8bc242a35616b3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DECE71900812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41f9af99b5e431c9a55fc2822b8463e58a303e3cc67e2a2a49765f62f607c09. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T13:00:41Z), 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/DECE71900817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb7aae5e409106d9c1f00884452764bfd0466f8d3858dbf7b529ec7e623ac8a6. 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/DECE71900818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b0cbc03c3231d5a74c05f2902a4af1d7c8c220b49b6e75434ac59ebeff3179. 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/DECE71900819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b275c60cbcdaa932b926add848061e4409979701de5bda9d6881581dbb7f85. 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/DECE71900821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc291a6fdbd10dec53f0aeeee08fba7d30b9b63880ec6eaec2ebc89526aefdf5d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DECE71900822.
GIRL, YOU SHOOT ME DOWN - Unplugged Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cef12f0a73f272d447cba50f7fe98934d29ba6bb0fea7d3db0d490a101eb4a. 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/DECE71900823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7775a865e5932eb674f5c2030011c267a617b00d4485c316f1ece0cf3fc5200. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DECE71900824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3349aedcb5b02a902804bf6b74253958837fad318ba0799b7e48337241b6edd0. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DECE71900825.
GIRL, YOU SHOOT ME DOWN - Progressive Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b9f673c27824349035535c109205fd0150f0f180a8479591cae807a7dc3c4f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DECE71900826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b5eeda2d517492c0dcc910180e62e105c85166b47f65e79ce460d885b963ac. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DECE71900827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab210e25ace56d10f9ee1a5913aa7e0071d07bc2cbf45a5166159bc8ada8d3e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DECE71900829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e74b465dcb4bf64a3ea0a152481d1ac4b3838e0225c67a011c1fff310f1bc01. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DECE81900283.
BELIEVE IN YOURSELF (GOOD TIMES COMING - 2021 VERSION)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff99c5217478ea09363b36a9fb61e4a5a76d78b356a59f69d8bc242a35616b3. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DECE71900812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cde8e8c0786f19a229f94cac927102593d81a17f40c9b6aac400384ff81e82. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:20:51Z), 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/DECE71900813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6df1585fc955db199e7ff627668ee219683caedf1ca978c0cdf79250484439d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DECE71900811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b4411203d35e3e6041734a9fe55019eae01865d24ae893aeef477e01e324eb. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:36:26Z), 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/DECE72203541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae2d94ee282b90c78b99490ebb5a6dabeae93415341a00ee61fc0dee273bb0e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:27Z), 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/DECE72203542.