Indecent Obsession (also known as Obsession) were an Australian pop rock band formed in early 1987 in Brisbane with founding mainstays Daryl Sims on drums and Michael Szumowski on keyboards. By 1988,
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 0x1ad242b1eeb08d5cf4023bf5f08df9cbfc3ae08dd0d4a9c58083eba3f6c1fdd2. 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/a4a9599e-7617-4a14-9880-f30349591284.json and https://artists.proofprofile.net/proofs/artist/a4a9599e-7617-4a14-9880-f30349591284.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 0x190bc5f940d4cd36886d3e1bcf197dccfea9a429684beed52657870a5ca7a8f3. 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/AUMU09300132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecbf7796de61013a9274655f6423c4fd127eea1ca9cb7cf8693dc38bcf7384b. 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/AUMU09300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9021d11884692914722dd47027934ce786bae7f6a3e533a2a5080992032fcb. 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/AUMU09300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6f6d553c7c2da3925ffe2d00cf2b777e98f508b4e4384b9b15b7cefbaac7a2. Chain 2 (Bitcoin): anchored in block 957304 (2026-07-09T12:19:34Z), 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/AUMU09300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e9a53b94bd388bbffb23e4388554e9f891bb82e9936c71ef4b811101e82be5. 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/AUMU09300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d16d222b2eb01779ae945dcf0b62a0077ddd19fde7f8967c5daaacd96dd04d. 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/AUMU09300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd119b5b6e61e79b985cd0b6c784755de74017c85e714bfd44dc22682981b88ca. 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/AUMU09300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9f0f5c87e9e1c4f2ac18d5b0a1a0d7b8c93fd9bccfc9baa487308066265124. 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/AUMU09300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61348a87b9fff188da69d072ffb46b087536321b7c4029fcf9c6dba26b39869. 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/AUMU09300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87df22ebd95208208c3609b41d6029254110bf2fb97bb7dd0de883c87c22621. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:04:23Z), 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/AUMU09300145.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5589adadb730e26c41528a38e35e0751fd60f802fd810f521b298e23af07e8f4. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/AUMU09300134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e23631f206edbfad738e9a27075b32547943af1268d6040033dfc935e56e0a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUMU09300136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbff1bf3cbd95821a33cce234b1396c9850f87592282bb1d49f7060437595c29. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/AUMU09300138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb536769546286b9b00c60c5586dac586ada6051b6488bd69444c6aba717397c9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/AUMU09300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c73c39eade81c68e03491bf14139846c666877f940c0d097a5d6d4071fd1620. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/AUMU09300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060ff4ac926ab98765f7284b1303558808a1a2fe7e12e64a5470fba7e08f80f3. 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/AUMU09200164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cd7df35cc726aa50d6f96a33400f29bc3878c6855f0e6326fe9d4dc1226903. 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/AUMU09200165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9d396ae1837ab38fd8e56a8e7d782237dd865e3391ad7650300fb77f8e0bec. 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/AUMU09200168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88d5b16843f0a9014e62586f510eb07c7faac59f5bfff4fe951786104a5626a. 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/AUMU09200169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f703f09cc0cc2222faf03de91d234416b10f5719b0ec62e3a5b778cd9ddc0b8. 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/AUMU09200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6fae260edec98300cddfa0e43efdd48f9da91b6711b9993675f5394d269979. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/AUMU09200167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaff836b94a11715bb448b84d2e18d29ea9a629417268d287ac18258bb82ec5. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/AUMU09200171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4423906a4fe79eaa8c8fc2595c1e1e58f94bc50631f87298471f8f4edc97f000. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/AUMU09200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe472eace54b71d39e643da9fb777fb11a4784923c723d8c065bf0860fa17f747. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/AUMU09200174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d0a79b0f747253933fc7f2731f27d74f18012070d40488a491e5cfde81aab4. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/AUMU09200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fdff7f6b80b0ba8e84bd73033708981255b5b2f5f7c051111767bb8afb196a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/AUMU09200178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eb0e8ca1c9f8744a7e89c207ac895e0ec70372890aedb69c34a1e1bca4c345. 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/AUWA02200952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41282e5da2b672f7afd9faed14f750d5d474abfd965ba7cb20e7f8a804603847. 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/AUWA02200959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247ec64840e0eb764663e3a2f08f1e251be31d3a183d8d921b04e3eef71fa0f0. 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/AUWA02200960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1995a3bc7f16a4efc55d4f10410bdd8ecb075e0fcd083633fd839c3b01103fd. 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/AUMU09000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdf0e01b94a52fb13ea54d18619a838375a271022b6cd98a1d5b3ef6788f65f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/AUWA02200953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb860ec9989a3c844f0cc1001f49d6a3a1c13507e2aaa91b004071310035f6e28. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/AUWA02200954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46475208aeeaf83d7780703002ebf638f483c2090355db9dbc3d3105eaee9b37. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/AUWA02200955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8e6d938306cda8f22f850ac483ad819df4136c4b3b403274c7f5e4d916ed92. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUWA02200956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16775d21049679ff9c7b29d394c23b3540450adaa4ec2080d924ac470c8371f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/AUWA02200957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d4b79478793d20d0272fa0aa79407f79a68eb920a864a4a5e9a5672294800b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUWA02200961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11a2f5d9bbe79f0d26f74bcc8daea7b595625a799886b9eef545bfecdb8ce61. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/AUWA02200962.