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 0x5ef54e29d74c113389d9c8fd7f08e1f16dedfa7d007fcf32993f0c696b7eccfa. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b8ea751-e5d7-40b6-ab91-8c53c3a128e4.json and https://artists.proofprofile.net/proofs/artist/8b8ea751-e5d7-40b6-ab91-8c53c3a128e4.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 0x57cc6ffa3de570377b2d079ee25173633ab9724a4500be2a0e0651ae69f3923b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PLP611500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e9199ffc3ff8ea2fdcdd83a18e029d81197db0cf743ddb112e8923715ac461. 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/PLP611500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e15465f93434038ded445385b7070197629213b63742d87797f6a3b89b9496. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:14:10Z), 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/PLP611500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f119c26dcde9702b078302d2f0d94b3c223ac11ca78662c09e8ac6020fedb8c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLP611500011.
The Man with an Unknown Soul (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775e3746b97dfe7277480bc7a296a742d636045b1a2ac9f13c4064c708d5310. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLP611500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f4b077b3062116d123d994673573c018fa9d8ceaa7f3036d37f5372370b3a6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:27:14Z), 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/PLP611500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f83623abe0e9eb29fca055f9a46930a22bebcd5fd49fec423a20406230de195. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PLP611500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c557282a338c3747b078d5a8f29431cdd100b1ef8e161ea6e98a2b0e61cf1a2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/PLP611500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dfff3fb9dfc195b3b2a4c0b560c03f112ec73273ea26444ba796c55af14815. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLP611500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0399b952f8f9a3a46feb864be91c878f91f833ba3b5213f3641ed39974249b. 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/PLP611900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ed5033d44008fd360e2d79f9db8a6b0eedda695906647904d87663bff37e65. 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/PLP611900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa57ecff72acd47ece9268da732fd1fcf2498a4750219fee33a0985e878fba98. 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/PLP612000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0399b952f8f9a3a46feb864be91c878f91f833ba3b5213f3641ed39974249b. 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/PLP611900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6b17ce7d0e5dba445c2dd4841b484e396a00a8727783e0b58c3ac9c1aa78e9. 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/PLP612000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ed5033d44008fd360e2d79f9db8a6b0eedda695906647904d87663bff37e65. 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/PLP611900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa147117a5fc0d8ee15c2f05a764025acb1d198ddfb62338512753537767fb221. 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/PLP612000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711f54373575bfc206668ed0c17efe1b647f8dc71041af427fcc6750698205d9. 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/PLP612000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f6e12eb91edb5330d044f5804b36f5a06938b7ad2a4d7e90613d2470fdadab. 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/PLP612000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4304a34d6a508a639926ef33103cfa7cd2f3b5c782d0b4ff324274be4fd907a2. 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/PLP612000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f516a600b5a599066377d86c19b6bfbefbc4c6b85fc899ccb8798bd9eecec5. 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/PLP612000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285becf6d71c8b70f5a09adee8df386bccb9d8edea7005226f36390f3b191aa6. 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/PLP612200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbc5e135f75da476f784410b651850080774c92b7f21de330e80b94dcb04bd1. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/PLP612300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199e1678887fa1852724aa29f4856949c381d6f23b12c16a2d1763907be79ae4. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/PLP612300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc223d97d33bbcd7dec96e10969d735100956d8f6c3835f80959f414240b6d3d4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLP612200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fc54557c6c9654d28e745b8212d76603e25f550bc9527ba3b2a4683604e76b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PLP612300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43db90f062531346a47436ea000ab22c68445c88f6835165b71d6e544d5bec2. 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/PLP612300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593447303254e7d1ea144826d9c07589ea6e9796b3831488ff7af5f3d5c82c69. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:29:18Z), 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/PLP612300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ad9147c201a6482594076ad9a5d1d8d69598fd35df4598407d427ce2d3279a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLP612100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce457a72d3f258bbc628b38e843e592d42596870ac89464af9aea3e95493353. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/PLP612200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbe7720ace03b5c24eaa85f548ae2b1f7be8db3be8d8bdc85b9c7b6ff10ddce. 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/PLP612400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756712cfb1c5b44da4e0cb0e3d24ed76fdead05b0911fcc9336af47388f7adb9. 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/PLA551801294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f67947e99bb67005c92786a756a554eab0eefa6896506bca3b383ca589bf42. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLUM72400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f6b0f2fe5d39b4f3a7deb58f9afe103602f8ac78307e201f317ea7e5be7488. 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/PL2DY2301789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3d43abe01a7dd7e71668b03b38db500d2618dbeb34265baf44194ea0a0c202. 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/PL2DY2301206.