Donald Richard Spencer (born 22 March 1937) is an Australian singer-songwriter, musician, and former children's television presenter, he also hosted his own teenage television and radio music variety
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 0x1f36e905106b1690e368ab0e07d1bc91e0b9ea72b7ea4c58e765e012dff51d0e. 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/ee0b04ff-479d-4565-9862-a3419ef08749.json and https://artists.proofprofile.net/proofs/artist/ee0b04ff-479d-4565-9862-a3419ef08749.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 0xa699be991805bc7c54dc5b7bc448bb3698c0add24350a9f25ff1aefe5ac54325. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:08:57Z), 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/USCGH1647076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd525eb2957267dc41e8228cafde2fa64d57ba1b3597aaf4683fc1ee71cae7e61. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USCGH1647077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155eeab6526b0070354b1460746d771171111484ccb47c3947fbc0e6bcb52abd. 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/USCGH1647078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7916f31676569bfe2b9cb7029d4896d701cffbb422614d5fa1d21d9b5340ac5. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USCGH1647079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7add3ba6e85bf91d88ceb50da64dfac8077a5ca581a7ecd619a69b786fac7cd0. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:21:46Z), 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/USCGH1647081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5224cdde0dbd7f04e3ee8866a0e5d77540708f67d638d23c24fe6b92328a990. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:40:23Z), 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/USCGH1647082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55279ce35ca33dc8498df7f3fb43159d93e7495ae867030cfe94df119dfb43f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:44:50Z), 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/USCGH1647083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa682e7e3ecd1714c5b44187171d89d782d90510641628e70601c2c290d2e0de0. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USCGH1647085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1359e3ef957a968de1b2f386933bbf1cc69b3ccfc4575ed8cbea3a260fae19f8. 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/USCGH1647086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913597615d3eefb31c6ca823551475bf1fb37cf69bdea24595e1687599a8ffcd. 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/USCGH1647087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08e40109ec96ab33cab9c3ec339f685698ae62e3095608fe246ade8f44de96b. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USCGH1647089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbb110f114d2ae02d5886491647a457d7d7f873b03f54332ed99b8856152427. 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/USCGH1647090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5830e20721f035fc196a37a8eef01cba05e08b32602f1c3099fc4167464015b7. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USCGH1647091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff7eb74c63fc40cc01096f7894d178317e007f996d780bebea2eeee9527c04d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USCGH1647092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8566a5943d23e23fc6d0cebd53e2c5f99ac577104a75bc5c22a6d368c664701e. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:48:07Z), 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/USCGH1647097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422934011eaf7f4d465f712b1d60e11709c94d27412565eb64aac6cb5183b087. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGH1647100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1fbfa9f8ba0edc7bbb5b56b3e92fb577fcd16a80a3d961816bf62e45d54581. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:41:53Z), 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/USCGH1653125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969cd823d43c026cdeba4fa7fcf38ccf311cd796535675ab67957c2f88b34bce. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:28:41Z), 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/USCGH1653127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaed5b87632f9c9d50a2aea4f34365135ed1ff7a754115cf00729c83f08ba3fc. 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/USCGH1653128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6451e76fbce6969d210a4da421a814939894364c061d1a52d4791204ec6f87d3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGH1653131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7ba4425566087feb74680225416d8bfeb41ef392ff558afbfb2ee262f0f39a. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/USCGH1653134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11c80c7491137ee7d2ce7869a42c1c39dee0beafef1ae911c817d0f7fc2ff25. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USCGH1653135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45501db5ebb8b9b6035e0ed8c2fc90cd5396d2d32b734ea84f4b9bba5ee25fb. 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/AUV401926709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f1bfea6da4827c693aa5572907de658562067613e31ec6fd382c1f49f45bc5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUV401926722.
Great Australian Children's Songs: Volume Two
Great Australian Children's Songs: Volume One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca320c23064c54db905d0d111df90120fea23df4e2f586e06480658dc0dca59. 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/AUV401919587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb6309d5f4a539881d9fb52562fd618eadc03221da1d0ad2ecc48c30f528373. 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/AUV401919590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecc075c360440a204595e4ac682b7b2425170bff5e78d1721510d6e1bfbd541. 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/AU5U22000488.
Great Australian Children's Songs, Vol. One
Don Spencer's Favourite Children's Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841f56f51b1f65a8545c637818d6eb3237ea8bc9cff6a6c2a77736caa0576820. 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/AUAB02300501.
Escape in Time: Popular British Television Themes of the 1960s
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311ffe048d8912fd184be8afddcd9238f9da4bff08fc7a76b8653f9075691854. 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/GBBLY1504886.